A modular industrial transmitter (200) includes a communication module (202) and a sensor module (204). The communication module (202) is configured to communicate with a remote device and has a common interface (206) configured to couple to a plurality of different types of sensor modules (204). The sensor module (204) is coupled to the common interface (206) of the communication module. Physical coupling of the communication module to the sensor module (204) is performed tool-lessly.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
G01D 21/00 - Measuring or testing not otherwise provided for
2.
MODULAR INDUSTRIAL TRANSMITTER ARCHITECTURE AND INTERFACE
An industrial communication module (102, 104, 106, 108, 110) includes a controller (218) and a common interface (206) coupled to the controller (218). The common interface (206) is configured to couple to a plurality of different types of sensor modules (112, 114, 116, 118, 120, 122). The industrial communication module (102, 104, 106, 108, 110) includes protocol/output circuitry (219) coupled to the controller (218) and configured to provide an output to a remote device. A sensor module (112, 114, 116, 118, 120, 122) includes a controller (224) and a common interface (206) coupled to the controller (224). The common interface (206) is configured to couple to a plurality of different types of industrial communication modules (102, 104, 106, 108, 110). The sensor module (112, 114, 116, 118, 120, 122) includes measurement processing circuitry (234) coupled to the controller (224) and configured to measure an analog electrical characteristic of a sensor and provide a digital indication of the measured analog electrical characteristic to the controller (224).
H04L 67/125 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
H04L 69/18 - Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
A field device mount (120) includes a union (105) configured to couple to a field device. A clamp foot (102) is coupled to the union (120) and is configured to engage fluid handling equipment. A tensioner assembly is coupled to the clamp foot (102) and includes a tensioner bracket (124). A biasing member (160) is disposed to urge the tensioner bracket (124) away from the clamp foot (102). A band (104) is configured to pass around the fluid handling equipment and to couple to opposite sides of the tensioner bracket (124). A buckle (380) is configured to provide clamping force to maintain tension in the band. A field device (100) mount using inline tensioners (106) or a v-bolt (204) as well as a method (400) of coupling a field device mount to fluid handling equipment are also provided.
F16L 41/06 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
F16L 41/08 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
F16B 2/08 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
An amperometric sensor assembly includes an amperometric sensor (180) and a bubble shedding clip (220). The amperometric sensor (180) has a sensor membrane (152) that is configured to be exposed to a process fluid. The amperometric sensor (180) also has an electrical characteristic that changes based on exposure to an electroactive substance. The bubble shedding clip (220) is coupled to the amperometric sensor (180) and is configured to inhibit the presence of bubbles on the sensor membrane (152) when the sensor membrane (152) is exposed to the process fluid. A water panel (100) including the amperometric sensor assembly (180) is also provided along with a method (300) of installing a bubble shedding clip (220) on an amperometric sensor (180).
A smart conduit plug (80, 180, 300, 400) includes a plug body (100, 302) having an externally threaded region (101, 330) and a diameter and thread pitch to engage a conduit port (28). At least one electrical component (108, 208, 228, 308, 328) is mounted relative to the plug body (100, 302) and is configured to electrically couple to a field device (14) and provide an indication relative to the field device (14).
A wireless industrial process filed device (200) includes a process interface element (212) configured to interface with a process fluid and control or sense a process variable of the process fluid. A controller (204) is configured to control operation of the process interface element (212). An RF circuit board (244) includes a plurality of RF transceivers (212) carried on the RF circuit board (244), each configured to send and/or receive an RF signal which carries information related to the process variable. A plurality of antennas (214) are carried on the RF circuit board (244) and form an antenna array. Each of the plurality of antennas (214) is coupled to at least one of the plurality of RF transceivers (212). Each of the plurality of antennas (214) having a different antenna pattern. The controller (204) controls operation of the plurality of RF transceivers (212) to communicate with a remote device through an antenna array patterned formed by transmission of RF signals through the plurality of antenna patterns of the plurality of antennas (214).
A guided-wave level measurement system (10) for hygienic applications is provided. The system includes an electronics housing (16, 102) and system electronics (200) disposed within the electronics housing (16, 102) and configured to generate a radar signal. A probe (104) is coupled to the electronics (200) and includes a waveguide (144) configured to extend into a process vessel (14). A sheath (210) is configured to receive the probe (104) and extend into the process vessel (14).
G01D 5/26 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light
8.
PROCESS FLUID TEMPERATURE ESTIMATION USING IMPROVED HEAT FLOW SENSOR
A process temperature estimation system (200) includes a mounting assembly (202) configured to mount the process fluid temperature estimation system to an external surface (116) of a process fluid conduit (100). A hot end thermocouple (314) is thermally coupled to the external surface (116) of the process fluid conduit (100). A resistance temperature device (RTD) (310) is spaced from the hot end thermocouple (314). Measurement circuitry (228) is coupled to the hot end thermocouple (314) and is configured to detect an emf of the hot end thermocouple (314) and a resistance of the RTD (310) that varies with temperature and provide sensor temperature information. A controller (222) is coupled to the measurement circuitry (228) and is configured to measure a reference temperature based on the resistance of the RTD (310) and employ a heat transfer calculation with the reference temperature, the emf of the hot end thermocouple (314), and known thermal conductivity of the process fluid conduit (100) to generate an estimated process temperature output.
G01K 13/02 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
G01K 7/02 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples
G01K 7/16 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements
A pH sensing probe (200) that is configured to be exposed to a process fluid is provided. The pH sensing probe (200) includes a sensor body (202) and a pH glass electrode (104) mounted to the sensor body (202). A reference electrode has a junction (112) mounted to the sensor body (202) that is configured to be exposed to the process fluid. A backup pH electrode (214) is mounted to the sensor body (202) and configured to be exposed to the process fluid. A pH sensing system (300) and a method (320) of operating a pH sensing system (300) are also provided. In one example, the backup pH electrode (214) is an ISFET electrode that can be automatically switched to when the pH glass electrode (104) is compromised.
A pH sensing probe (103) configured to be exposed to a process fluid is provided. The pH sensing probe (103) includes a sensor body (206) and a pH electrode (110) mounted to the sensor body (206). A primary reference electrode (202) is mounted to the sensor body (206) and has a primary reference junction that is configured to be exposed to the process fluid. A secondary reference electrode (204) is mounted to the sensor body (206) and has a secondary reference junction configured to be exposed to the process fluid. A seal (208) isolates the secondary reference junction from the process fluid until deterioration of the primary reference junction. A pH sensing system (300) and a method (320) of operating a pH sensing system are also provided.
A wireless process variable transmitter (10) for use in an industrial process includes a process variable sensor (40) configured to sense a process variable of the industrial process. Measurement circuitry (42) connected to the process variable sensor provides (40) an output related to the sensed process variable. Wireless communication circuitry (48) connected to the measurement circuitry (42) wirelessly transmits information related to the sensed process variable to a remote location. A removable industrial power module (12) is configured to hold a replaceable battery (50) and provide power to the process variable sensor (40), the measurement circuitry (42) and the wireless communication circuitry (48). Battery test circuitry (54) in the removable industrial power module (12) connects to the replaceable battery (50) and provides a visual output related to a condition of the replaceable battery (50).
A vibrating fork liquid level switch (10) includes a vibrating fork assembly (11) arranged to vibrate at a first frequency when in contact with a process fluid (18) and at a second frequency when in contact with air. A drive circuit (54) connected to the vibrating fork assembly (11) is configured to drive the vibrating fork assembly (11) into oscillation. Sense circuitry (52) senses an oscillation frequency of the vibrating fork assembly (11). Output circuitry (70/72) provides a first output when the sensed oscillation is at the first frequency and a second output when the sensed oscillation is at the second frequency. Control circuitry (80) controls power applied to the vibrating fork assembly (11) by the drive circuit (54) between a first and a second power level. Verification circuitry (68) verifies the oscillation frequency of the vibrating fork assembly (11) when power applied to the vibrating fork assembly (11) by the drive circuitry (54) is changed.
G01F 25/20 - Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
13.
CUSTOMIZATION OF PROCESS VARIABLE TRANSMITTERS WITH HERMETICALLY SEALED EMI PROTECTION ELECTRONICS
A process variable transmitter (102) includes a process variable sensor (110), and an electromagnetic interference (EMI) protection circuit (182) coupled to the process variable sensor (110). The process variable transmitter (102) also includes a hermetic module (104C) enclosing the EMI protection circuit (182), and electrical connectors (132A,134A,136A) coupled to the EMI protection circuit (182) within the hermetic module (104C). The EMI protection circuit is configurable from outside the hermetic module (104C) via the electrical connectors (132A,134A,136A) to interconnect electronic components of the EMI protection circuit (182) in one of two configurations such as to provide or not to provide transient protection.
G01D 3/028 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group mitigating undesired influences, e.g. temperature, pressure
G01D 21/00 - Measuring or testing not otherwise provided for
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
An industrial process field device (102) includes an active component, a switch (120), a switch monitor (140), and a controller (108). The active component may be a sensor configured to sense a process parameter, or a control device configured to control an industrial process. The switch (120) is electrically coupled to first and second terminals (153, 154). The switch monitor (140) is configured to detect an open or closed state of the switch (120), and generate a first state output, a second state output, or a chattering state output. An anti-chatter circuit (200) outputs a chatter stabilized state output based on the chattering state output. The controller (108) is configured to set the switch (120) in the open or closed state, and generate a notification based on any one of the first and second state outputs and the chatter stabilized state output that indicates at least one of the current state and a condition of the switch (120).
G05B 19/18 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
15.
HEAT FLUX TEMPERATURE SENSOR PROBE FOR NON-INVASIVE PROCESS FLUID TEMPERATURE APPLICATIONS
A heat flux temperature sensor probe (400) includes a first mineral-insulated cable portion (402) and a second mineral-insulated cable portion (404). The first mineral-insulated cable portion (402) has a first metallic sheath (406), and a first plurality of thermocouple conductors (408, 410, 411) extending therein. The second mineral-insulated cable portion (404) has a second metallic sheath (406), and a second plurality of thermocouple conductors (407, 409) extending therein. A first thermocouple (412) is formed between one of the first plurality of thermocouple conductors (408, 410, 411) and one of the second plurality of thermocouple conductors (407, 409) proximate a first end of the second mineral-insulated cable portion (404). A second thermocouple (416) is formed between at least two of the second plurality of thermocouple conductors (407, 409) proximate a second end of the second mineral-insulated cable (402). A sheath (418) is operably couped to and connects the first (402) and second (404) mineral insulated cable portions, a portion of an interior of the sheath (418) is filled with a non-conductive material.
G01K 7/02 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples
G01K 13/02 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
A temperature probe (200) includes a mineral-insulated cable (202) having a metallic outer sheath (214) surrounding a mineral insulation (212) therein. The mineral-insulated cable (202) has a plurality of conductors (146, 150) running through the mineral insulation (212). A temperature sensitive element (208) has a pair of lead wires (148, 152). An insert (206) has at least one conduit to receive the pair of lead wires (148, 152) of the temperature sensitive element (208). The insert (206) also has a recess (220) configured to receive the temperature sensitive element (208). An insert sheath (204) is configured to slide over the insert (206) and has a first end configured to couple to the metallic outer sheath (214) of the mineral-insulated cable (202) and a second end. An endcap (210) is attached to the second end of the insert sheath (204). The insert (206) is configured to urge the temperature sensitive element (208) into contact with the endcap (210).
An industrial process field device (102) includes a pressure sensor (126), and a housing containing the pressure sensor (102). The housing (144) includes a base (146) having a base interface (150) and a first base process opening. A flange (155) is attached to the base (146) and includes a flange interface (152) having a first flange process opening. A pressure (126) at the first flange process opening is communicated to the pressure sensor (126) through the first base process opening. A first gasket process opening (170) of a gasket (115) is aligned with the first base process opening and the first flange process opening. A first surface of the gasket (115) engages the base interface (150), and a second surface of the gasket (115) engages the flange interface (152). A dielectric insulation system (120) includes at least one dielectric layer (184) that insulates the housing (114) from electrical currents conducted through the flange (155). Each dielectric layer (184) includes a layer of ceramic material, an anodized layer, or a plastic overmold.
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
F16L 25/02 - Construction or details of pipe joints not provided for in, or of interest apart from, groups specially adapted for electrically insulating the two pipe ends of the joint from each other
F16L 41/00 - Branching pipes; Joining pipes to walls
18.
WIRELESS PROCESS VARIABLE TRANSMITTER WITH BATTERY POWER SOURCE
A wireless process variable transmitter (12) for use in an industrial process (10) includes a process variable sensor (16) configured to sense a process variable of the industrial process (10) and provide a process variable sensor output. A battery power source (46) includes a plurality of battery power banks (50) each having a primary cell battery (52), a low voltage cut-off circuit (54) electrically connected to the primary cell battery (52) which provides an electrical connection to the primary cell battery (52) while a voltage of the primary cell battery (52) is above a threshold, and an ideal diode (58) having an input electrically connected to the primary cell battery (52) through the low voltage cut-off (54) and providing a power bank output. A power sharing node (62) has an input connected to the battery power bank output of each of the plurality of battery power banks (50) and having a shared power output which provides power to circuitry of the wireless process variable transmitter (12).
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for accumulators
19.
INTRINSICALLY SAFE, REUSABLE, POWER MODULE FOR FIELD DEVICES
A reusable power module (110,200) for a field device (100) is provided. The reusable power module (110,200) includes a main body (204) defining a chamber configured to house a battery (206). A cover (202) is operably coupled to the main body (204) and has a first configuration relative to the main body (204) wherein the main body (204) is open and allows access to the battery (206). The cover (202) also has a second configuration wherein access to the battery (206) is closed. When the cover (202) is in the second configuration, the reusable power module (110,200) complies with an intrinsic safety specification.
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/284 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A process oxygen analyzer (10) includes a process probe (12) extendible into a flow of process combustion exhaust, the process probe (12) having an oxygen sensor measurement cell (36). Measurement circuitry (64) is coupled to the oxygen sensor measurement cell (36) and configured to obtain a non-corrected indication of oxygen concentration relative to a combustion process based on an electrical characteristic of the oxygen sensor measurement cell (36). A controller (60) is operably coupled to the measurement circuitry (64) and is configured to obtain an indication of process pressure and selectively provide a corrected oxygen concentration output based on non-corrected indication of oxygen concentration and the indication of process pressure. A method (200) of providing a process oxygen concentration using a process oxygen analyzer (10) coupled to an industrial combustion process is also disclosed.
G01N 27/16 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
G01N 1/22 - Devices for withdrawing samples in the gaseous state
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
G01L 19/08 - Means for indicating or recording, e.g. for remote indication
21.
ACTIVE BI-DIRECTIONAL OPEN PATH GAS DETECTION SYSTEM
An open path gas detection system (200, 280) includes a transmitter (202, 202A) and a receiver (204). The transmitter (202, 202A) is configured to generate illumination (106) across an open path. The receiver (204) is positioned to detect the illumination (106) from the transmitter (202, 202A) after the illumination (106) has passed through the open path and detect a gas of interest based on the illumination (106). However, the laser can also be used for gas detection systems in other circumstances. The transmitter (202, 202A) and receiver (204) are configured to communicate wirelessly (120). A method (500) of operating an open path gas detection system (200, 280) is also provided.
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
G01N 21/39 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
An open path gas detection system (200) includes a transmitter (202) and a receiver (204). The transmitter (202) is configured to generate illumination (216), having broadband spectrum, across an open path. The receiver (204) is positioned to detect the illumination (216) from the transmitter (202) after the illumination (216) has passed through the open path. The receiver (204) includes at least one spectrometer (218) configured to determine spectroscopic information of the illumination (216) to identify at least one gas of interest based on the spectroscopic information and provide an output (222) based on the at least one gas of interest.
G01N 21/25 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/33 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
23.
HEAT FLOW-BASED PROCESS FLUID TEMPERATURE ESTIMATION SYSTEM WITH THERMAL TIME RESPONSE IMPROVEMENT
A process fluid temperature estimating system (200) comprising: a mounting assembly (200) configured to mount the process fluid temperature estimation system to an external surface of a process fluid conduit (100); a sensor capsule (206) configured to sense at least a temperature of the external surface of the process fluid conduit; measurement circuitry coupled to the sensor capsule and configured to provide sensor capsule temperature information to a controller (222); and a controller configured to obtain the external surface of the process fluid conduit and a reference temperature and employ a heat transfer calculation with the reference temperature and the external surface of the process fluid conduit to generate an estimated process fluid temperature output.
A wireless field device (12) for use in an industrial process (10) includes input/output terminals to couple to a process interface element (16) and a discrete input/output channel configured to receive a discrete input signal from the process interface element (16) through the input/output terminals when configured as a discrete input channel, the discrete input/output channel further configured to provide a discrete output to the process interface element (16) through the input/output terminals when configured as discrete output channel. Wireless communication circuitry (48) transmits and receives information. A controller (44) transmits information through the communication circuitry (48) based upon a sensed process variable, provides a discrete output signal when the discrete input/output channel is configured as a discrete output channel and receives a discrete input signal when configured as a discrete input channel. An external power supply input is coupled to an external power supply (102) and a battery power supply input couples a battery (101). Power supply circuitry (108) powers the controller (44) from at most one of the external power supply or the battery.
A single-use electrochemical analytical sensor (200) is provided. The sensor (200) includes a sensing electrode (224) configured to contact process fluid and a reference chamber (260,202) containing an electrolyte. A reference electrode (225) is disposed in the electrolyte. A reference junction (258) is configured to contact the process fluid and is further configured to generate a flow of electrolyte into the process fluid. The reference chamber (260, 202) is configured to be stored in a depressurized state and then pressurized prior to operation. A method (400) of operating a single-use electrochemical sensor is also provided.
A process fluid connector (204) for a single-use process fluid sensing system is provided. The process fluid connector (204) includes a pair of process fluid connections (300, 302), each process fluid connection (300, 302) being configured to couple to a cooperative process fluid coupling. A process fluid conduit section (301) is operably coupled to each of the process fluid connections (300, 302). A sensor attachment port (308) is coupled to the process fluid conduit section (301) and is configured to receive and mount a process fluid sensor (360). A retractable fluid chamber (312) is coupled to the process fluid conduit (301) section and configured to provides wet storage for sensing component(s) of the process fluid sensor (360). A process fluid sensing system using the process fluid connector is also provided.
A loop-powered field device (32) includes a plurality of terminals (52, 54) coupleable to a process communication loop (36) and a loop control module (56) coupled to one of the plurality of terminals (52, 54) and configured to control an amount of current flowing through the loop control module (56) based on a control signal. A field device main processor (58) is operably coupled to the loop control module (56) to receive its operating current (I_Main) from the loop control module (68) and is configured to provide the control signal based on a process variable output. A low power wireless communication module (56) is operably coupled to the loop control module (56) to receive its operating current (I_BLE) from the loop control module (56). The low power wireless communication module (68) is communicatively coupled to the field device main processor (58). The low power wireless communication module (68) has an active mode and a sleep mode. The low power wireless communication module (68) is configured to obtain a measurement of operating current (I_BLE) available while the low power wireless communication module (68) is in the sleep mode and modify an active cycle of the low power wireless communication module (68) based on the measurement of operating current (I_BLE).
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
A gel for use in a pH or an ORP sensor, components of the gel comprising water, a reference electrolyte salt, a buffering system for adjusting pH of the gel, and a polymeric gelling agent, and the gel does not degrade under gamma irradiation.
A temperature probe (100) includes a sheath (104), a temperature sensitive element (102, 122), and an insert (200). The sheath (104) has a sidewall (108) defining an interior space therein. The temperature sensitive element (102, 122) is disposed within the interior space of the sidewall (108) and has an electrical characteristic that varies with temperature. The insert (200), which is formed of silicon carbide, is operably interposed between the sidewall (108) and the temperature-sensitive element (102, 122). A method of manufacturing a temperature probe is also provided. A temperature sensing system employing a temperature probe is also provided.
G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
G01K 7/02 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples
G01K 7/16 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements
30.
IN-SITU OXYGEN ANALYZER WITH SOLID ELECTROLYTE OXYGEN SENSOR AND ANCILLARY OUTPUT
An improved oxygen analyzer (100) includes a controller (500) configured to receive an oxygen sensor signal and provide an oxygen concentration output. A probe (104) is configured to extend into a source of combustion process gas. An oxygen sensor (504) is disposed within the probe (104) and has a sensing electrode (218) mounted to one side of a solid electrolyte (220) and a reference electrode (222) mounted to an opposite side of the solid electrolyte (220). The oxygen sensor (504) has catalytic beads (216) that are configured to be disposed between the process gas and the sensing electrode (216). Measurement circuitry (502) is operably coupled to the oxygen sensor (504) and the controller (500) and is configured to provide the controller (500) with the oxygen sensor signal based on an electrical response of the oxygen sensor (504). The controller (500) is configured to detect a behavior of the oxygen concentration output over time to provide at least one ancillary output.
A fluid flow obstruction device (1) for a process fluid flow measurement device (9) includes a first wall (11) having a first side. A second wall (15) having a proximate end is arranged at a proximate end of the first side of the first wall (11). The arrangement forms a first apex (60) between the first wall (11) and the second wall (15). At least one additional wall (18) is arranged parallel to the second wall (15) at a distance from the proximate end of the first side of the first wall (11). The arrangement of the at least one additional wall (18) and the first wall forms a corresponding additional apex (61).
G01F 1/40 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction - Details of construction of the flow constriction devices
32.
SOLID STATE REFERENCE GEL FOR A PH SENSOR AND METHOD FOR ITS PRODUCTION
A solid state gel for use in a pH sensor comprises a reaction product of water, a buffer system for adjusting pH of the gel when in a liquid state, polyethylene glycol or its derivatives as a gelling agent and a salt wherein the water, the buffer, the polyethylene glycol and a reference electrolyte salt when mixed while in a liquid state form a mixture that was subjected to Gamma irradiation to form the reaction product. Also is disclosed the manufacturing of the solid state gel, a pH sensor comprising the gel and its production.
Embodiments of the present disclosure are directed to field device housing assemblies (124) and field devices (102) that include the housing assemblies (124). One embodiment of the field device housing assembly (124) includes a main housing (126), a cover (128) having a proximal end (190) connected to the main housing (126), a transparent panel and a retainer ring (208). An interior wall of the cover (128) includes a threaded section (192) that is concentric to a central axis (204), and a flange (206) extending radially inward from the interior wall toward the central axis (204). The transparent panel (150) is received within a socket defined by the interior wall and the flange (206). The retainer ring (208) is secured to the threaded section (192) of the interior wall. The transparent panel (150) is clamped between the retainer ring (208) and the flange (206).
A polymeric fluid sensor (100) includes an inlet (102) configured to receive fluid and an outlet. A polymeric tube (134) is fluidically interposed between the inlet (102) and the outlet (104) and has a first sensing location (152) with a first sidewall thickness (G01) and a second sensing location (154), spaced from the first sensing location (152), with a second sidewall thickness (G02). A sleeve (142) is disposed about the polymeric tube (134). The first sidewall thickness (G01) is less than the second sidewall thickness (G02) and a first sensing element (122) is disposed at the first location (152) and a second sensing element (150) is disposed at the second location. In another example, the first and second sidewall thicknesses are the same and a fluid restriction (236) is disposed within the polymeric tube (134) between the first and second sensing locations (152, 154).
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
An in-situ averaging combustion analyzer (303) includes a housing (102) and a probe (302) coupled to the housing (102) at a proximal end. The probe(302) has a distal end configured to extend into a flue(14) and contains a zirconia-based oxygen sensing cell(112) proximate the distal end (306). Electronics(106) are disposed in the housing(102) and are coupled to the zirconia-based oxygen sensing cell(112). The electronics are configured to measure an electrical characteristic of the zirconia-based oxygen sensing cell(112) and calculate an oxygen concentration value. An averaging conduit(300) is disposed about the probe (302) and has a plurality of inlets (304) spaced at different distances from the distal end(306) of the probe (302). The averaging conduit(300) has at least one outlet (308) positioned between the distal end and the proximal end of the probe. The electronics(106) are configured to provide an average oxygen concentration output based on the calculated oxygen concentration value.
A pressure sensor assembly (110) includes a pressure sensor (112) having a support structure (220) and a sapphire isolation member (226) coupled to the support structure (220) and forming a region (230) between a first surface of the sapphire isolation member (226) and the support structure (220). A second surface of the sapphire isolation member (226) is positioned to interface with fluid from or coupled to a process. Electrical leads (224) couple to a polysilicon strain gauge pattern (232) positioned in the region (230) on the first surface of the sapphire isolation member (226), and the polysilicon strain gauge pattern (232) is configured to generate electrical signals indicative of the pressure (P) of the fluid when the sapphire isolation member (226) deflects responsive to the pressure.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
A multi-stage irreversible sensor coupling is provided. A sensor body (150) includes a sensor (110) and has a sensor body wall (152) and at least one sensor body engagement feature (154). A clip barrel (158) is configured to slidably engage the sensor body (150) and has at least one clip barrel engagement feature (156). A wedge clip (170) is configured to slidably engage the clip barrel (158) and has at least one wedge clip engagement feature (172) that is configured to urge the at least one sensor body engagement feature (154) into cooperative engagement with the at least one clip barrel engagement feature (156) when the wedge clip (170), clip barrel (158), and sensor body (150) are fully engaged together.
A process fluid multivariable measurement system is provided. The multivariable measurement system includes a thermowell (100, 200, 300) configured to couple to a process fluid conduit (504) and extend through a wall (506) of the process fluid conduit (504). The multivariable measurement system also includes a temperature sensor assembly (110, 210, 310) disposed within the thermowell (100, 200, 300), the temperature sensor assembly (110, 210, 310) having at least one temperature sensitive element (114, 214, 314) disposed therein. The multivariable measurement system also includes a pressure sensor assembly (118, 218, 318) coupled to the thermowell (100, 200, 300), the pressure sensor assembly (118, 218, 318) having at least one pressure sensitive element (120, 220, 320) disposed therein. The multivariable measurement system further includes transmitter circuitry (400), communicatively coupled to the temperature sensor assembly (110, 210, 310) and the pressure sensor assembly (118, 218, 318), configured to receive a temperature sensor signal from the at least one temperature sensitive element (114, 214, 314) and responsively generate a temperature measurement output based on the temperature sensor signal. The transmitter circuitry (400) is further configured to receive a pressure sensor signal from the at least one pressure sensitive element (120, 220, 320) and responsively generate a pressure measurement output based on the pressure sensor signal.
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 9/04 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
A flame arrester for a process device (100) is provided. The flame arrester includes a flame arrester element (220) formed of a first helix having a first axis (1) and a second helix having a second axis (2), wherein the first axis and the second axis are unparallel. A housing (222) configured to mount to the process device (100). The flame arrester element (220) is mounted to the housing (222). A combustion analyzer employing an improved flame arrester is provided along with a method (300) of manufacturing an improved flame arrester for process devices (100).
A pressure sensor assembly (110) includes a pressure sensor (112), a pedestal (116) and an electrically conductive header (114) having a header cavity (144). The pressure sensor (112) includes, an electrically conductive sensing layer (150) having a sensor diaphragm (176), an electrically conductive backing layer (152) having a bottom surface (160) that is bonded to the sensing layer (150), an electrically insulative layer (154) having a bottom surface (160) that is bonded to a top surface (162) of the backing layer (152), and a sensor element (182) having an electrical parameter that changes based on a deflection of the sensor diaphragm (176) in response to a pressure difference. The pedestal (116) is bonded to the electrically insulative layer (154) and attached to the header (114) within the header cavity (144).
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
A multivariable transmitter (150) is provided for measuring multiple process fluid variables. The multivariable transmitter (150) includes a metal housing (185) constructed from a material suitable for exposure to a corrosive material, such as seawater. A differential pressure sensor (166) is disposed within the metal housing (185). A line pressure sensor (187, 189) is also disposed within the metal housing (185). Measurement circuitry (174) is operably coupled to the differential pressure sensor (166) and the line pressure sensor (187, 189) to provide differential pressure and line pressure outputs. A temperature probe (182) has a sheath (188) constructed from a material suitable for exposure to the corrosive material. The temperature probe (182) is electrically coupled to circuitry within the metal housing (185) and is physically coupled to the metal housing (185) via a high-pressure coupling (186).
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
A process fluid temperature transmitter includes (12) a plurality of terminals (22), an excitation source (24), a measurement device (26), and a controller (28). The plurality of terminals (22) is couplable to an RTD (30). The excitation source (24) is operably coupled to the plurality of terminals (22) and is configured to apply an excitation signal to the RTD (30). The measurement device (26) is coupled to the plurality of terminals (22) and is configured to measure a response of the RTD (30) to the applied excitation signal. The controller (28) is coupled to the excitation source and the measurement device (26). The controller is configured to perform an RTD resistance measurement by causing the excitation source (24) to apply the excitation signal to the RTD (30) and to cause the measurement device (26) to measure the response of the RTD (30) while the excitation signal is applied to the RTD (30). The controller (28) is also configured to perform an RTD diagnostic by causing the excitation source to change application of the excitation signal and causing the measurement device (26) to measure an RTD response to the changed excitation signal.
G01K 7/20 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
G01K 7/18 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
G01K 15/00 - Testing or calibrating of thermometers
A flame photometric detector (500) for a process gas chromatograph (200) is provided. The flame photometric detector (500) includes a combustion chamber body (510) defining a combustion chamber therein. A sample inlet tube (532) is configured to introduce a process gas sample into the combustion chamber (560). An ignitor (550) is configured to initiate combustion within the combustion chamber (560). A thermocouple assembly (553) is configured to provide an indication of temperature within the combustion chamber (560). The sample tube (532) has an end (532E) that is adjustable relative to the combustion chamber (560).
G01N 21/72 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flame burners
A thermal probe assembly (100) includes a temperature sensitive element (102) having an electrical characteristic that varies with temperature. A plurality of leadwires (110, 112, 114, 116) is operably coupled to the temperature sensitive element (102). The temperature sensitive element (102) is disposed within a sheath (104) and spaced from a distal end of the sheath (104) by a distance selected to provide vibration resistance to the temperature sensitive element (102).
G01K 1/06 - Arrangements for facilitating reading, e.g. illumination, magnifying glass
G01K 7/04 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
G01K 7/22 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor
45.
TWO-WIRE INDUSTRIAL PROCESS FIELD DEVICE POWER SUPPLY CIRCUITRY
An industrial process field device includes first and second loop terminals configured to couple to a two-wire process control loop. Device circuitry is powered from the process control loop and monitors a process variable or controls a control device. A current regulator is in series with the loop terminals, and regulates a loop current. A first shunt voltage regulator regulates a voltage across the device circuitry. Supplemental circuitry is connected in series with the first shunt voltage regulator and the second loop terminal, and is powered by power from the two-wire process control loop shunted through the first shunt voltage regulator. A second shunt voltage regulator is connected in series with the first shunt voltage regulator and the second loop terminal, and in parallel with the supplemental circuitry, and regulates a voltage across the supplemental circuitry.
A process fluid temperature measurement system (100) is provided. The process fluid temperature measurement system (100) includes a thermowell (102) configured to couple to a process fluid conduit (104) and extend through a wall (106) of the process fluid conduit (104). The process fluid temperature measurement system (100) also includes a temperature sensor assembly (110) disposed within the thermowell (102), the temperature sensor assembly (110) including a sensor capsule (112) having at least one temperature sensitive element disposed therein. The temperature sensor assembly (110) also includes a vibration sensor (120) coupled to the sensor capsule (112), the vibration sensor (120) being configured to produce a vibration signal in response to detected vibration. The process fluid temperature measurement system (100) further includes transmitter circuitry coupled to the vibration sensor (120) and configured to receive the vibration signal and produce an output based on the received vibration signal.
G01K 1/02 - Means for indicating or recording specially adapted for thermometers
G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
G01K 7/02 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples
G01K 15/00 - Testing or calibrating of thermometers
G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
G01H 1/00 - Measuring vibrations in solids by using direct conduction to the detector
47.
WIRELESS SENSOR NETWORK GATEWAY WITH INTEGRAL INTRINSIC SAFETY OUTPUTS FOR FIELD MOUNTED ACCESS POINT ANTENNAS
A wireless sensor network gateway (102) includes safe side circuitry (120), hazardous side circuitry (124) and isolation circuitry (122), which are supported by a housing (126). The safe side circuitry (120) includes a safe side power circuit (140), and a safe side data input/output (I/O) circuit (142). The hazardous side circuitry (124) includes a hazardous side power circuit (148), and a hazardous side data I/O circuit (152). The isolation circuitry (122) divides the safe side circuitry (120) from the hazardous side circuitry (124). The isolation circuitry (122) includes a power isolation circuit (154) that couples the safe side power circuit (140) to the hazardous side power circuit (148) and forms an intrinsic safety barrier between the safe side power circuit (140) and the hazardous side power circuit (148), and a data isolation circuit (156) that couples the safe side data I/O circuit (142) to the hazardous side data I/O circuit (152) and forms an intrinsic safety barrier between the safe side data I/O circuit (142) and the hazardous side data I/O circuit (152).
A pressure transmitter (102, 202) includes a housing (103, 206) and a pressure sensor having an electrical characteristic that varies with applied pressure. The pressure sensor (214) is configured to generate a sensor signal indicative of process fluid pressure. A transmitter isolation diaphragm (114) is configured to couple to a process barrier seal (116, 216) to convey pressure to the pressure sensor (214). A flange (108) is coupled to the transmitter isolation diaphragm (114). The flange includes at least one gas pathway (120) extending inwardly from an outer diameter of the transmitter isolation diaphragm (114). Electronics (219) are coupled to the pressure sensor (214) to receive the sensor signal and to generate an output indicative of the pressure.
G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
F16L 55/10 - Means for stopping flow in pipes or hoses
A process pressure transmitter (36) includes transmitter electronics (72) disposed within a housing (71). The transmitter electronics (72) includes a communications circuit (78, 80) coupled to a processing system (74) and an analog to digital converter (62) disposed within the housing (71). The analog to digital converter (62) electrically is coupled to the transmitter electronics (72). A pressure sensor (400) comprises a cell body (402 A, B) defining an interior cavity (406A, B). A deflectable diaphragm (410) comprising a second material is coupled to the cell body (402 A, B) and separates the interior cavity into a first cavity (406 A) and a second cavity (406B). The deflectable diaphragm includes a groove region (430A, B) located around a periphery of the deflectable diaphragm (410). The first and second cavities (406 A, B) each contain a dielectric fill-fluid, each of the fill fluids adapted to receive a pressure and exert a corresponding force on the diaphragm (410), and the diaphragm (410) is deflectable in response to differences in the pressures received by the fill-fluids in the first and second cavities (406A, B). A first electrode (412 A) is capacitively coupled to the diaphragm (410) to form a first variable capacitor and a first lead wire (414 A) electrically connects to the first electrode (412A). A second electrode (412B) is capacitively coupled to the diaphragm (410) to form a second capacitor and a second lead wire is electrically coupled to the second electrode. The first and second lead wires (414A, B) are electrically coupled to the analog to digital converter (62).
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
50.
NON-INVASIVE PROCESS FLUID FLOW INDICATION USING TEMPERATURE DIFFERENCE
A process fluid flow system (300) includes a first pipe skin sensor (306, 320, 322, 324) and a second pipe skin sensor (306, 320, 322, 324). The first pipe skin sensor (306, 320, 322, 324) is disposed to measure an external temperature of a process fluid conduit (100) at a first location on the process fluid conduit (100). The second pipe skin sensor (306, 320, 322, 324) is disposed to measure an external temperature of a process fluid conduit (100) at a second location on the process fluid conduit (100). Measurement circuitry (238) is coupled to the first and second pipe skin sensors (306, 320, 322, 324). A controller (222) is coupled to the measurement circuitry (238) and is configured to identify a process fluid flow condition based on signals from the first and second pipe skin sensors (306, 320, 322, 324) and to output an indication of the process fluid flow condition.
An industrial process differential pressure sensing device (130) includes a housing (134) having first and second isolation cavities (136A,B) that are respectively sealed by first and second diaphragms (140A,B), a differential pressure sensor (232), a static pressure sensor (242A), an eddy current displacement sensor (172A), and a controller (150). The static pressure sensor (242A) is configured to output a static pressure signal that is based on a pressure (P1) of fill fluid in the first isolation cavity (136A). The differential pressure sensor (232) is configured to output a differential pressure signal that is indicative a pressure difference between the first and second isolation cavities (136A,B). The eddy current displacement sensor (172A) is configured to output a position signal that is indicative of a position of the first isolation diaphragm (140A) relative to the housing (134). The controller (150) is configured to detect a loss of a seal of the isolation cavity (136A) based on the position signal, the static pressure signal and the differential pressure signal.
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
52.
A COMBUSTION ANALYZER WITH DUAL CARBON MONOXIDE AND METHANE MEASUREMENTS
A combustion analyzer (150) configured to simultaneously detect the concentrations of oxygen, carbon monoxide and methane in a combustion process is provided. The combustion analyzer (150) includes an oxygen sensor (152) configured to detect the oxygen in the combustion process and generate a first sensor signal indicative of the concentration of oxygen in the combustion process. The combustion analyzer further includes a dual carbon monoxide-methane sensor (152) configured to operate at approximately 600 °C and provide a second sensor signal indicative of methane concentration and at approximately 300 °C to selectively provide a third sensor signal indicative of carbon monoxide concentration. The combustion analyzer finally includes a controller (158) configured to receive the sensor signals, determine the concentration of oxygen and generate a carbon monoxide concentration output and a methane concentration output based on the dual carbon monoxide-methane sensor signals and the concentration of oxygen.
G01N 31/12 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using combustion
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
53.
COMBUSTION ANALYZER WITH SIMULTANEOUS CARBON MONOXIDE AND METHANE MEASUREMENTS
A combustion analyzer (150) configured to simultaneously detect the concentrations of oxygen, carbon monoxide and methane in a combustion process is provided. The combustion analyzer (150) includes an oxygen sensor (152) configured to detect the oxygen in the combustion process and generate a sensor signal indicative of the concentration of oxygen in the combustion process. The combustion analyzer (150) further includes a dual carbon monoxide-methane sensor (152) configured to operate at approximately 400°C and provide a second sensor signal indicative of methane concentration and at approximately 300°C to selectively provide a third sensor signal indicative of carbon monoxide concentration. The combustion analyzer (150) finally includes a controller (158) configured to receive the sensor signals, determine the concentration of oxygen, and generate a carbon monoxide concentration output and methane concentration output based on the dual carbon monoxide-methane sensor signals and the concentration of oxygen.
A pressure capsule/header assembly for a process fluid pressure transmitter (100) is provided. An isolator plug (314) has an isolation diaphragm (206) at a first end (315) thereof and a second end (317) spaced from the first end (315). The isolator plug (314) has a fill fluid passageway (319) fluidically coupling the first end (315) to the second end (317). A header (318) has a first end configured to carry a pressure sensor and a second end spaced from the first end. The header (318) has at least one electrical interconnect extending from the first end to the second end. A biaxial support ring is (322) disposed about an outer surface of the header (318). The biaxial support ring (322) and the header (318) define a tapered interference interface therebetween. The header (318) is welded to the isolator plug (314) at a first weld and the biaxial support ring is welded to the isolator plug (314) at a location that is spaced from the second end of the header (318).
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
An industrial process field device includes a piezoelectric transducer, a sensor circuit, a test circuit, a controller and a communications circuit. The sensor circuit generates a sensor signal indicating a process variable based on a voltage across the piezoelectric transducer. The test circuit is configured to apply a voltage pulse having a pulse voltage to the piezoelectric transducer that induces a response signal, and capture peak positive and negative voltages of the response signal. The controller calculates a current condition value of the piezoelectric transducer based on the peak positive voltage, the peak negative voltage and the pulse voltage, and generates a diagnostic test result based on a comparison of the current condition value to a reference condition value corresponding to a properly operating piezoelectric transducer. The communications circuit communicates the process variable and the diagnostic test result to an external control unit over a process control loop.
A process transmitter (102) includes a process variable sensor (104), a test circuit (130), a switch and a controller (120). The process variable sensor (104) includes a sensor output (126) that is indicative of a sensed process variable. The test circuit (130) is configured to detect a condition of the process variable sensor (104). The switch (132) is configured to selectively connect the test circuit (130) to the process variable sensor (104) and disconnect the test circuit (130) from the process variable sensor (104). The controller (120) is configured to obtain a measurement of the process variable, control the switch (132), detect a condition of the process variable sensor (104) by comparing the sensor output (126) when the test circuit (130) is connected to the process variable sensor (104) to the sensor output (126) when the test circuit (130) is disconnected from the process variable sensor (104), and communicate the condition in the measurement to an external control unit (110).
A sensor system for an electric power asset includes a sensor instrument coupleable to sensors associated with the electric power asset to receive sensor signals therefrom, and an antenna connection cable coupled to the sensor instrument. The antenna connection cable includes a cable sheath and a plurality of twisted pair signal carriers contained within the cable sheath to carry sensor signals received from the electric power asset. A first subset of the plurality of twisted pair signal carriers carry antenna signals and a second separate subset of the plurality of twisted pair signal carriers carry signals for partial discharge monitoring.
A field device (100) includes a process communication module (122), a graphical display (106) and a controller (126). The process communication module (122) is configured to communicate in accordance with a process industry standard communication protocol. The controller (126) is operably coupled to the process communication module (122) and the graphical display (106) and is configured to responsively cause the graphical display to generate a machine-readable display (106) output.
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
H04W 12/04 - Key management, e.g. using generic bootstrapping architecture [GBA]
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
59.
TWO-FACTOR AUTHENTICATION FOR WIRELESS FIELD DEVICES
A method (400) for authenticating a user of a handheld field maintenance tool (403) is provided. The method (400) includes moving the handheld field maintenance tool (403) into a proximity of a field device (420). The field device (420) receives a primary key. The field device (420) generates a secondary key and transmits the secondary key to a remote system (410). The remote system (410) transmits the secondary key to the user of the handheld field maintenance tool (430). The field device (420) receives the secondary key. The field device (420) authenticates the user of the handheld field maintenance tool (430).
H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system
An electrochemical sensor with an ion-selective membrane that comprises a crosslinked alkyl methacrylate homopolymer or copolymer of two or more alkyl methacrylates with a covalently attached electrically neutral or electrically charged ionophore that is selective for a target cation or anion, or with a covalently attached cationic or anionic ionic site, or with a covalently attached cationic or anionic ionic site and covalently attached electrically neutral or electrically charged ionophore.
An averaging pitot tube probe assembly (106）for use in sensing a parameter of a fluid flow in a process vessel (114） includes an averaging pitot tube probe (108 extending through the process vessel (114). The probe (108）includes a first end (136）extending through a first opening（140）in the process vessel (114）,and a second end（138）extending through a second opening（142）in the process vessel. A fixed mount（146）secures the first end（136）in a fixed position relative to the process vessel（114). A tensioning mount (148） includes a tensioner (150）that is attached to the second end (138）of the probe (108）and is configured to adjust a tension in the probe (108), and thereby adjust a resonant frequency of the probe (108）.
An industrial transmitter assembly (102) includes an industrial transmitter (110) and a transmitter mount (112). The transmitter (110) includes electronics (123) contained in a housing (125). The transmitter mount (112) is configured to attach the housing (125) to a structure and includes a stem member (130), an adaptor (132) and a locking member (148). The stem member (130) includes a first end (136) connected to the housing (125) of the transmitter, and a second end (138) having a flange (166) or a first twist-lock connector (210). The adaptor (132) is configured for attachment to a structure (114) and includes a base member (144) having a slot configured to receive the flange (166) or a second twist-lock connector (112) configured to attach to the first twist-lock connector (210). The locking member (148) is configured to secure the second end of the stem to the base member (144).
A sensor module assembly (102, 202) includes a sensor housing (106) that houses a sensing element configured to sense a characteristic of a process and generate a sensor signal indicative of the characteristic. The sensor module assembly (102, 202) includes a wireless device housing that houses communication circuitry (206) configured to receive the sensor signal and a wireless transmitter configured to send the sensor signal wirelessly to a remote device. The sensor module assembly (102, 202) also includes a communication cable (208) that communicatively couples the sensing element (108) in the sensor housing (106) to the communication circuitry (206) in the wireless device housing.
A detachable filter assembly (18) includes a filter (22), a filter assembly housing (20) defining a body of the filter assembly, an attachment mechanism configured to couple to a sensor installation (10), a securing mechanism (28) configured to mate with a mating feature on the sensor installation (10), and a calibration port (24) configured to provide a direct fluid pathway to the sensor installation (10).
A sensor body cell (144A) for use in a pressure sensor (122) includes a metal housing and an insulating cell (150A). The metal housing (146) has a first cavity (154A) with a first conical inner surface (179). A portion of the first conical inner surface (179) is concave. The insulating cell (150A) includes a first seal portion (170) within the first cavity (154A) and forms a seal with the first conical inner surface (179).
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
A remote seal system (150) includes a remote diaphragm (158) having a first side configured to be exposed to a process fluid. A conduit (166) is coupled to the remote diaphragm (158) and includes a fill fluid in fluidic communication with a second side of the remote diaphragm (158). A temperature sensor (164) is thermally coupled to the conduit (166) and configured to sense a temperature of the fill fluid. In one alternative example, a remote sensing assembly (150) includes a flexible elongate conduit (160) having a first end coupled to a remote diaphragm in fluidic communication with a process fluid and a second end extending a length from the first end to a process fluid pressure transmitter. A substantially incompressible fill fluid is disposed within the flexible elongate conduit (166). The process fluid pressure transmitter (100) is configured to generate an output value indicative of pressure in the process fluid based on a corresponding pressure in the fill fluid. A temperature detector (164, 254) is coupled to the flexible elongate conduit (166) and is configured to provide a signal indicative of an average temperature of the fill fluid along the flexible elongate conduit (166). A compensation system (304) calculates a thermal expansion value based on the average temperature and adjusts the pressure signal based on the thermal expansion value.
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
G01L 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
67.
ELECTRICAL POWER GENERATION OR DISTRIBUTION ASSET MONITORING
A sensor module (110) for monitoring an asset (102) in an electrical power generation or distribution system (100) includes a module body (124), a sensor (104), a sensor near field coupling structure (122), and an interrogation near field coupling structure (120). The sensor is supported by the module body, arranged to sense a parameter of the asset and configured to generate a sensor output (116) relating to the parameter. The sensor near field coupling structure is connected to the sensor and supported on a first side (134) of the module body. The interrogation near field coupling structure is supported on a second side (132) of the module body. The sensor output is transmitted from the sensor near field coupling structure to the interrogation near field coupling structure. The sensor module is configured to provide electrical isolation between the asset and a monitoring circuit (106) configured to receive the sensor output through the interrogation near field coupling structure.
A process fluid temperature estimation system includes a mounting assembly, a sensor capsule, measurement circuitry, and a controller. The mounting assembly is configured to mount the process fluid temperature estimation system to an external surface of a process fluid conduit. The sensor capsule has an end that is configured to contact the external surface of the process fluid conduit to form an interface having a contact region and an air gap. The sensor capsule also has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule and configured to detect an electrical characteristic of the at least one temperature sensitive element that varies with temperature and provide at least process fluid conduit skin temperature information. The controller is coupled to the measurement circuitry and is configured to obtain the process fluid conduit skin temperature information from the measurement circuitry and to obtain reference temperature information. The controller is configured to obtain a heat flow parameter related to the air gap of the interface and to employ a heat transfer calculation with the process fluid conduit skin temperature information, reference temperature information, and heat flow parameter to generate an estimated process fluid temperature output.
A system for non-intrusively measuring process fluid pressure within a process fluid conduit (202) is provided. The system includes a measurement bracket (200) configured to couple to an external surface of the process fluid conduit (202). The measurement bracket generates a variable gap based on deformation of the process fluid conduit (202) in response to process fluid pressure therein. A gap measurement system (220, 260, 262) is coupled to the measurement bracket (200) and provides an electrical signal based on a measurement of the variable gap. A controller (216) is coupled to the gap measurement system (220, 260, 262) and is configured to calculate and provide a process fluid pressure output based on the electrical signal and information relative to the process fluid conduit (202).
G01L 7/02 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
A sensor module (200) includes a sensor module body (100). A sensing element (101, 704) within the sensor module body (100) senses a characteristic of an environment. A breathing element (102) within the sensor module body (100) allows the sensing element (101, 704) to access the environment. Electronics (103, 702) within the senor module body (100) are coupled to the sensing element (101, 704). The sensor module body (100) forms a wall of a flame path (301).
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
A process fluid temperature estimation system (200) includes a mounting assembly (202) configured to mount the process fluid temperature estimation system (200) to an external surface (116) of a process fluid conduit (100). A sensor capsule (206) has at least one temperature sensitive element (254) disposed therein. Measurement circuitry (228) is coupled to the sensor capsule (206) and configured to detect an electrical characteristic of the at least one temperature sensitive element (254) that varies with temperature and provide sensor capsule temperature information. A controller (222) is coupled to the measurement circuitry (228) and is configured to obtain a reference temperature and employ a heat transfer calculation with the reference temperature, the sensor capsule temperature information and the known thermal conductivity of the process fluid conduit to generate an estimated process fluid temperature output. The reference temperature is obtained from a reference temperature source selected from the group consisting of: a terminal temperature sensor (232), process communication, an electronics temperature sensor (234), an external ambient temperature sensor (246), and an estimation based on known thermal properties.
A transmitter flange (104) includes a flange body having a valve opening (508) therein, the valve opening (508) having a valve seat (510), and an internal valve (504) configured to be retained in the valve opening (508). A retaining ring (506) may be configured to thread into the valve opening (508) to further retain the internal valve (504) within the opening.
F16K 1/04 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
A display assembly (10) with a software rotatable content layout (30) for a process control transmitter (12). The assembly (10) has a display screen (14) configured for displaying the rotatable content layout (30) in a plurality of configurations and at least one physical button (16) fixedly positioned proximate one side of the display screen (14). In one embodiment, the display layout (30) comprises an upper perimeter band and a lower perimeter band reserved for displaying at least one label (24) and a right side band and a left side band reserved for displaying an indicator attached to the at least one label (24) and a third, interior region reserved for displaying additional text such that the at least one label (24) is visually attached to the physical button (16) proximate the one side of the display screen (14). The display (14) is rotatable to maintain content in a viewer orientation such that at least one label (24) is visually tied to at least one physical button (16) in each of the plurality of configurations.
G09F 23/00 - Advertising on or in specific articles, e.g. ashtrays, letter-boxes
G09F 9/35 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
An industrial process transmitter (102) includes a housing (112), sensor circuitry (114), transmitter circuitry (116), and a radiation shield (130). The sensor circuitry (114) is contained in the housing (112), and is configured to sense a process parameter and generate a sensor output that is indicative of the sensed process parameter. The transmitter circuitry (116) is contained in the housing (112), and is configured to communicate the sensed process parameter to an external unit (120). The radiation shield (130) substantially surrounds a portion of the housing (112) containing the sensor circuitry (114) and shields the sensor circuitry (114) from gamma radiation.An industrial process transmitter (102) includes a housing (112), sensor circuitry (114), transmitter circuitry (116), and a radiation shield (130). The sensor circuitry (114) is contained in the housing (112), and is configured to sense a process parameter and generate a sensor output that is indicative of the sensed process parameter. The transmitter circuitry (116) is contained in the housing (112), and is configured to communicate the sensed process parameter to an external unit (120). The radiation shield (130) substantially surrounds a portion of the housing (112) containing the sensor circuitry (114) and shields the sensor circuitry (114) from gamma radiation.
A process fluid temperature estimation system (200) includes a sensor capsule (206) having a temperature sensitive element (254) disposed therein configured to sense an external surface (116) of a process pipe (100). The process fluid temperature estimation system (200) includes measurement circuitry (228) coupled to the sensor capsule (206) and configured to detect a characteristic of the at least one temperature sensitive element (254) that varies with temperature and provide sensor capsule temperature information. A controller (222) is coupled to the measurement circuitry (228) and is configured to obtain a reference temperature and employ a heat transfer calculation with the reference temperature and the sensor capsule temperature information to generate an estimated process temperature output. The process fluid temperature estimation system (200) includes a mounting assembly (302) configured to mount the process fluid temperature estimation system (200) to the external surface of the process pipe (100), wherein a portion of the mounting assembly (302) is offset from the external surface (116) of the process pipe (100).
A process fluid temperature estimation system (200) includes a mounting assembly (202) that is configured to mount the process fluid temperature estimation system (200) to an external surface (110) of a process fluid conduit (100). A sensor capsule (206) has at least one temperature sensitive element (254) disposed therein. Measurement circuitry (223) is coupled to the sensor capsule and is configured to detect a characteristic of the at least one temperature sensitive element (254) that varies with temperature and provide sensor capsule temperature information. A high temperature spacer (302) has a known thermal conductivity and is configured to be interposed between the external surface (116) of the process fluid conduit (100) and the at least one temperature sensitive element (254). A controller (222) is coupled to the measurement circuitry (223) and is configured to obtain a reference temperature and employ a heat transfer calculation with the reference temperature, the sensor capsule temperature information and the known thermal conductivity of the high temperature spacer (302) to generate an estimated process fluid temperature output.
A process transmitter (100) includes a transmitter housing (108) and a liquid detector (128, 302) coupled to the transmitter housing (108). The liquid detector (128, 302) includes a temperature sensor (402) configured to generate signals indicative of a presence of liquid within the transmitter housing (108). The process transmitter (100) also includes a controller (122) coupled to the liquid detector (128, 302) configured to receive the generated signals, determine the presence of liquid within the transmitter housing (108) based on the received signals, and generate an output indicative of the determined presence of liquid within the transmitter housing (108).
G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
A heating assembly (218, 400, 700) includes a heater (502) extending in a longitudinal direction from a first end to a second end. Heat transfer fins (320, 704) are thermally coupled to the heater (502) and extend in a direction transverse to the longitudinal direction. An airflow component (316, 708) is positioned proximate one of the first and second end (703, 705) and is configured to generate airflow along the plurality of heat transfer fins (320, 704) toward the other of the first and second end (703, 705).
F24H 3/06 - Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
F24H 9/18 - Arrangement or mounting of grates or heating means
G01N 30/30 - Control of physical parameters of the fluid carrier of temperature
A process analytic system (300) includes an analytic sensor (302) configured to sense a characteristic of a fluid. The process analytic system (300) also includes measurement circuitry coupled to the analytic sensor (302) and configured to generate an indication of the characteristic of the fluid. The process analytic system (300) includes a processor (305) coupled to the measurement circuitry and configured to receive the indication of the characteristic of the fluid and calculate a sensor-related output based on the indication of the characteristic of the fluid. In addition, the process analytic system includes a diagnostics component (356) configured to determine a rate of degradation of the analytic sensor (302) based on the sensor-related output and a reference value, wherein the rate of degradation is compared to a pre-selected threshold.
A thermowell assembly (110) is provided for use in measuring a temperature of a process fluid (106). The thermowell assembly (110) includes an elongate thermowell body (120) which is configured to mount to a process vessel (104) and extend into the process fluid (106) contained in the process vessel (104). An elongate bore (140) extends along a length of the elongate thermowell body (120) from a proximal end (142) of the elongate thermowell body (120) proximate a wall of the process vessel to a sealed distal end (144) of the elongate thermowell body (110) positioned in the process fluid (106). A side bore (150) extends from an exterior of the thermowell assembly (110) to the elongate bore (140). The side bore (150) is positioned outside of the process vessel (104). A verification valve (124) includes an inlet (152) coupled to the side bore (150) at the exterior of the thermowell assembly (110) and further includes an outlet (154). The verification valve (124) allows an operator to verify a presence of process fluid (106) in the elongate bore (140) by opening the verification valve (124) and observing process fluid (106) at the outlet (154) of the verification valve (124).
G01M 3/02 - Investigating fluid tightness of structures by using fluid or vacuum
G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
G01M 3/14 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for valves
G01M 3/32 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
An industrial process vessel insulation monitoring system (110) for monitoring an insulated section of a process vessel (104) containing a process material (102) includes one or more condition sensors (112) and a controller (114). The condition sensors (112) are configured to sense at least one environmental condition, such as temperature, humidity, moisture level, and/or chemical composition, and generate condition outputs that are indicative of the corresponding sensed condition. The controller (114) is configured to detect at least one section condition relating to the insulated section based on the condition output, and generate condition information relating to the at least one detected section condition. Examples of the section conditions include a thermal resistance of an insulation (106) of the insulated section, damage or degradation to an insulation (106) of the insulated section, corrosion of the process vessel (104) at the insulated section, conditions that promote corrosion of the process vessel (104), and moisture intrusion to the insulation (106).
G01M 3/18 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for valves
G01N 17/00 - Investigating resistance of materials to the weather, to corrosion or to light
G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
A transmitter (11) for measuring a process pressure includes a pressure sensor (27) and a temperature sensor (28) providing an input temperature signal. A first remote pressure sensitive diaphragm (18) couples to the transmitter (11) by a first capillary tube (22) filled with a fill fluid having a density as a function of fill fluid temperature. An input circuit (54) is operably connected to at least the pressure sensor and provides an intermediate pressure signal at least roughly representative of the process pressure. A correcting circuit (58) is coupled to the temperature sensor and to the input circuit. The correcting circuit (58) processes the intermediate pressure signal by compensating for the fill fluid density as a function of the temperature and provides a compensated output more closely representative of the process pressure. The correction circuit (58) further performs an initial height (H) determination based upon a pressure measurement made while no pressure is applied to the first diaphragm (18).
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/04 - Means for compensating for effects of changes of temperature
A location awareness system (100) including a communication network (102), and a network operating element (111) coupled to the communication network (102). At least one anchor network gateway (104) is coupled to the communication network (102), the at least one anchor network gateway (104) configured to generate a wireless anchor network (105). A plurality of anchors (106) are configured to couple to one of the at least one anchor network gateway (104) via its respective wireless anchor network (105). A plurality of tags (108, 110) is each configured to communicate with at least one anchor (106) to provide ranging information for determination of a position of the tag (108, 110) within an area covered by the system (100).
H04W 4/02 - Services making use of location information
G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
A process diaphragm seal (102) includes a seal body (110), a diaphragm (108) and a ring member (130). The seal body (110) includes a flange (132) that surrounds a cavity (134). The diaphragm (108) includes an active portion (136) that extends over the cavity (134) and a peripheral portion (138) that surrounds the active portion (136). The ring member (130) clamps the peripheral portion (138) of the diaphragm (108) to an outer wall (143) of the flange (132) through an interference fit (128) between an inner wall (142) of the ring member (130) and the outer wall (143) of the flange (132). A seal is formed between the peripheral portion (138) of the diaphragm (108) and the outer wall (143) of the flange (132).
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
85.
FIELD DEVICE INTERFACE SEAL AND ELECTRICAL INSULATION
A field device assembly (114) includes an industrial process field device (102), a flange (155) and a sealing and electrically insulating system (118). The field device (102) includes a pressure sensor (126) and a housing (144) containing an active component. The housing (144) includes a base (146) having a base interface, which includes a first base process opening. The flange (155) is attached to the base (146) of the housing and includes a coplanar interface having a first flange process opening. The sealing and electrically insulating system (112) includes a gasket (119) that includes a dielectric material. A first process opening in the gasket (112) is aligned with the first base process opening and the first flange process opening. A first surface of the gasket (119) engages the base interface (150), and a second surface of the gasket (119) that is opposite the first surface engages the coplanar interface (152). The gasket (119) electrically insulates the housing (144) of the field device (102) from the flange (155).
F16L 25/02 - Construction or details of pipe joints not provided for in, or of interest apart from, groups specially adapted for electrically insulating the two pipe ends of the joint from each other
F16L 41/00 - Branching pipes; Joining pipes to walls
86.
ANALOG CIRCUIT TIME CONSTANT COMPENSATION METHOD FOR A DIGITAL TRANSMITTER USING AN ANALOG OUTPUT
A process transmitter (200) includes a circuit producing a plurality of digital values representing magnitudes for an analog signal and a filter (213) receiving the plurality of digital values and producing a plurality of filtered digital values. Output analog circuitry (216) in the process transmitter (200) is configured to receive the filtered digital values and output an analog signal on a communication channel (204) of the process transmitter (200). The output analog circuitry (216) has a transfer function and the filter (213) has a transfer function. The transfer function of the filter (213) at least partially offsets the transfer function of the output analog circuitry (216).
G01D 3/036 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
G01D 21/00 - Measuring or testing not otherwise provided for
A single-use adapter (300) for coupling a single-use container (102) to a reusable sensor transducer (220) includes an attachment region. The single-use adapter (300) includes a deflectable diaphragm sealingly coupling to the attachment region (312) and configured to contact a media sample. The single-use adapter (300) also includes a radio-frequency identification (RFID) tag (306) coupled to the single-use adapter (300) and configured to store and transmit data.
A level and surface temperature gauge (102) includes a housing structure (140), a level scanner (112), and a temperature scanner (114). The level scanner (112) is supported by the housing structure (140) and is configured to generate surface level measurements of a process material surface (116) at a plurality of locations on the surface (116). The temperature scanner (114) is supported by the housing structure (140) and is configured to generate temperature measurements of the process material surface (116) at a plurality of locations on the surface (116).
G01F 23/28 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
An apparatus (100) for generating electrical discharge includes a component that generates an electrical discharge (108), a measurement circuit (300) configured to measure a magnitude of the electrical discharge, and a controller (112) configured to control the magnitudes of the electrical discharge. A method for controlling a reference partial discharge signal in an electric power system includes generating a partial discharge for built in self test, controlling an expected discharge magnitude of the partial discharge, and includes measuring an actual discharge magnitude of the partial discharge.
The present disclosure is provided with a measuring element (M) and a measuring device. The measuring element includes a base body (1), a diaphragm (2) and a permeation resistant layer (4), the diaphragm is fixedly connected to the base body (1), with a sealed cavity (3) being defined between the diaphragm (2) and the base body (1). The permeation resistant layer (4) is arranged on an inner side surface (21), facing the sealed cavity (12), of the diaphragm, and extended continuously on the inner side surface (21) of the diaphragm (2) at least beyond a connection region of the diaphragm with the base body. The measuring device includes the measuring element (M).
G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
A microwave resonator flame ionization detector assembly (316) includes a microwave resonator (504) disposed proximate a flame (322) to evaluate an ion concentration in a flame effluent. A resonant frequency of the microwave resonator (504) is detected, and a reflection coefficient of the resonator (504) is used to determine an electric permittivity of a material in which the resonator (5040 is immersed. The electric permittivity depends on an ion concentration proximal to the resonator (504), and the ion concentration is related to the concentration of hydrocarbons present in the flame (322).
G01N 27/62 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode
An industrial process field device (100) includes an active component (111), a latching relay (120), a controller (110), a relay drive (122), and a reset circuit (140). The active component may be a sensor configured to sense a process parameter, or a control device configured to control a process of the industrial process. The controller (110) is configured to generate a switch signal, and the relay drive (122) is configured to set the latching relay (120) in one of a set state and a reset state based on the switch signal. The reset circuit (140) is configured to set the latching relay (120) to the reset state in response to an interruption of electrical power to the relay drive.
H01H 47/00 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
A pipe diagnostic system (200) includes a sensor capsule (206), measurement circuitry (228) and a controller (222). The sensor capsule (206) is configured to be coupled to an exterior surface of a pipe (100) and has at least one temperature sensitive element disposed therein. The measurement circuitry (223) is coupled to the sensor capsule (206) and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller (222) is coupled to the measurement circuitry (223) and is configured to obtain a transmitter reference measurement (502) and employ a heat transfer calculation (506) with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller (222) is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication (512) based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.
G01N 25/20 - Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
G01K 13/00 - Thermometers specially adapted for specific purposes
An industrial process field device (100) includes an active component (112), a switch (120), a switch monitor (140), and a controller (108). The active component (112) may be a sensor configured to sense a process parameter, or a control device configured to control a process of the industrial process. The switch (120) is electrically coupled to first and second terminals and is configured to electrically connect the first and second terminals when in a closed state, and electrically disconnect the first and second terminals when in an open state. The switch monitor (140) is configured to detect a current state of the switch corresponding to the closed or open state, and generate a state output indicating the current state. The controller is configured to set the switch in the open or closed state, and generate a notification based on the state output that indicates at least one of the current state of the switch and a condition of the switch (120).
A sensor package (300) includes at least one conductive trace (530) providing a voltage common and a base (308) supporting the at least one conductive trace. A conductive extension (320,322) extends from the base (308) so as to contact a conductor of an insulated conductor (100) when the sensor package (300) is mounted on an insulator of the insulated conductor (100) and thereby provide an electrical connection between the conductive trace (530) providing the voltage common and the conductor.
A sensor capsule (300) for a heat flux sensor includes a hot end (304) and a cold end (302). The sensor capsule (300) includes a thermal conductor (310) extending from the hot end (304) toward the cold end (302), and a plurality of temperature sensors (312, 354) coupled to the thermal conductor (310) at different distances from the hot end (304).
A pH sensor (100) for a single-use container includes a plunger sleeve (114) configured to couple to a flange (102) of the single-use container. A plunger (134) is axially movable within the plunger sleeve (114) between a storage position and an operating position. A pH sensing element (142) coupled to the plunger (134) wherein the pH element (142) is disposed within a storage chamber (162) in the storage position and is configured to be exposed to an interior of the single-use container in the operating position. In one example, a temperature sensitive element (164) is disposed within the pH sensor (100) and configured to sense temperature proximate the pH sensing element (142). In another example, a lock member (120) is coupled to the plunger (134), where the lock member (120) has a locked position and an unlocked position, the lock member (120) being configured to inhibit movement of the plunger (134) when in the locked position. In yet another example, the plunger (134) includes at least one filling channel (156) that allows access to a reference fill chamber (154) when the plunger (134) is in a filling position.
A level transmitter (500) includes an analog-to-digital convertor clock signal generator (504) that receives a transmitter clock signal that is used to establish when an incident signal is transmitted toward a material boundary (122, 124). The analog-to-digital convertor clock signal generator (502) uses the received transmitter clock signal to generate an analog-to-digital convertor clock signal. An analog-to-digital convertor (534) samples an analog waveform based on the analog-to-digital convertor clock signal and generates a digital value for each sample of the analog waveform. An analysis module (537) analyzes the digital values to determine a distance to the material boundary (122, 124).
H03L 7/18 - Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
99.
DETERMINATION OF A DYNAMIC RATING FOR A LOAD PARAMETER ALONG A CONDUCTIVE PATH
A method for determining a dynamic rating for a conductive path includes using a sensor to measure a value for a load parameter and selecting a heating process associated with the load parameter. A rated temperature change is changed by removing temperature changes due to a heating process other than the selected heating process to produce an impaired rated temperature change. A thermal load percentage is determined from the impaired rated temperature change. The thermal load percentage and the measured value are then used to determine the dynamic rating for the load parameter. A method also includes measuring a temperature rise, a current, and a voltage on the conductive path multiple times. Using at least two basis functions and the multiple measured temperature rises, currents and voltages, the values for at least two variables are determined. Trends in each variable are determined to determine a condition of electric equipment.
A diaphragm seal (100) is provided. The diaphragm seal (100) includes a flange coupled to a deflectable diaphragm (124) configured to come into contact with a flow of process fluid along a first side of the diaphragm. The flange includes a fluidic passageway (122) in fluidic communication with a second side of the deflectable diaphragm (124), the fluidic passageway (122) including a substantially incompressible fluid. The flange also includes at least one additional passageway in fluidic communication with the first side of the deflectable diaphragm (124).
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
patents
