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).
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.
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 50/204 - 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
4.
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).
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
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
5.
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 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 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 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
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 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 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
12.
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 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
14.
PROCESS VENTING FEATURE FOR USE IN SENSOR APPLICATIONS WITH A PROCESS FLUID BARRIER
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.
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.
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
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.
H04W 12/04 - Key management, e.g. using generic bootstrapping architecture [GBA]
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
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
18.
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 9/14 - Arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
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.
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 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 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
G01L 19/08 - Means for indicating or recording, e.g. for remote indication
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
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
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).
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
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 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 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 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
28.
MEASURING ELEMENT AND MEASURING DEVICE COMPRISING THE SAME
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 pipe diagnostic system includes a sensor capsule, measurement circuitry and a controller. The sensor capsule is configured to be coupled to an exterior surface of a pipe and has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule 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 is coupled to the measurement circuitry and is configured to obtain a transmitter reference measurement and employ a heat transfer calculation with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.
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 1/143 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
G01K 7/16 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements
G01N 17/00 - Investigating resistance of materials to the weather, to corrosion or to light
G01K 1/024 - Means for indicating or recording specially adapted for thermometers for remote indication
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).
G01K 1/16 - Special arrangements for conducting heat from the object to the sensitive element
G01K 1/143 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
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
G01K 1/022 - Means for indicating or recording specially adapted for thermometers for recording
G01K 1/024 - Means for indicating or recording specially adapted for thermometers for remote indication
A pressure sensor assembly (100) for use in sensing a pressure of a process fluid in a high temperature environment includes an elongate sensor housing (120) configured to be exposed to the process fluid and having a cavity (124) formed therein. A pressure sensor (110) is positioned in the cavity (124) of the elongate sensor housing (120). The pressure sensor (110) has at least one diaphragm (202, 204) that deflects in response to applied pressure and includes an electrical component having an electrical property which changes as a function of deflection of the at least one diaphragm which is indicative of applied pressure. A flexible membrane (150) in contact with the at least one diaphragm is disposed to seal at least a portion of the cavity (124) of the sensor housing from the process fluid and flexes in response to pressure applied by the process fluid to thereby cause deflection of the at least one diaphragm.
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
An industrial process temperature transmitter (100) for measuring a temperature of a process medium (102) includes a temperature sensing unit (104), a compensation circuit (120), and an output circuit (126). The temperature sensing unit includes a process temperature sensor (105A) that is separated from the process medium by an isolation wall (108). The temperature sensing unit (104) is configured to produce a temperature signal (122) that is indicative of the temperature of the process medium (108) based on a process temperature signal output (106A) from the process temperature sensor (105 A) during a temperature measurement. The compensation circuit (120) is configured to compensate the temperature signal (106A) for a response time of the temperature measurement to a change in the temperature of the process medium (102), and output a compensated temperature signal (122). The output circuit (126) is configured to produce a temperature output (128) as a function of the compensated temperature signal (122) corresponding to the temperature of the process medium (108).
G01K 1/00 - MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR - Details of thermometers not specially adapted for particular types of thermometer
G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
A pressure-sensing system is presented. The pressure-sensing system comprises a single-use container (51), a disposable process connector (220) and a pressure transducer (210). The disposable process connector (220) is configured to couple directly to the single-use container (51). The disposable process connector (220) has a deflectable diaphragm (224). The pressure transducer (210) is removably coupled to the disposable process connector (220). The pressure transducer (210) comprises an isolation diaphragm (226) positioned adjacent the deflectable diaphragm (224), a pressure sensor module (104) operably coupled to the isolation diaphragm (226) and a controller coupled to the pressure sensor (104). The controller is configured to transmit a detected indication of pressure within the single-use container (51).
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
A gas detection device (100) includes a gas sensor module, configured to detect a gas, and a filter assembly (106). The gas sensor module includes a gas sensor (102) disposed within a gas sensor housing (104) and circuitry (208) coupled to the gas sensor housing (104). The circuitry (208) is configured to provide an indication of the gas. The filter assembly (106) is configured to couple to the gas sensor housing (104) and protect the gas sensor (102) from particulates.
A process pressure transmitter system includes a process pressure transmitter housing (14) and a process pressure sensor (28) in the process pressure transmitter housing (14). A metal flange (17) is configured to mount to a process vessel (10) which carries a process fluid (16). An isolation diaphragm (25) attaches to the metal flange (17) and is exposed to the process fluid (16) through an opening in the process vessel (10). The isolation diaphragm (25)comprises a polymer diaphragm bonded to a metal face of the metal flange (17). A capillary passageway carries a fill fluid from the isolation diaphragm to thereby convey a process pressure to the pressure sensor (28).
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
A heat flow sensor (100) configured to provide an indication of temperature relative to a process fluid is provided. The sensor (100) comprises a first resistance temperature detector (RTD) element (112) and a second RTD element (114) spaced within a sheath (102) from the first RTD element (112). The sensor (100) also includes a set of leads (116) comprising a first subset (201) and a second subset (202), wherein the first subset (201) is coupled to the first RTD element (112) and the second subset (202) is coupled to the second RTD element (114).
A gas sensor module (114) includes a gas sensor (100) configured to provide an electrical indication related to a gas. The gas sensor module (114) also includes an alignment mechanism (208) and a latching feature (204) configured to couple the gas sensor module (114) to a housing device (102). The gas sensor module (114) also includes a pin guide (202) configured to establish an electrical connection between a header (104) of the housing device (102) and the gas sensor (100). In addition, the gas sensor module (114) is configured to be tool-lessly inserted into the housing device (102).
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 27/02 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
G01N 27/26 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by using electrolysis or electrophoresis
An ultrawide band two-way ranging based positioning system (600) includes a number of active tags (606) each having a position, and a number of beacons (604) configured for location of a position of a tag (606) of the plurality of active tags. The active tags (606) and the beacons (604) are synchronized continuously to a common time base.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
G01S 13/76 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
A positioning system (300), includes a plurality of anchor stations (302) each configured to transmit a radio frequency signal (320). A mobile station (304) includes a radio frequency transceiver configured to transmit and receive a radio frequency signal from at least one of the plurality of anchor stations (302). A processing unit (408, 506) is configured to determine position information of the mobile station (304) based upon the transmitted and received radio frequency signal. Another positioning system uses a number of beacons (604) ranging a number of mobile tags (606) with ultra-wide band ranging (612), and communicating wirelessly with an application server (602).
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
41.
NFC ENABLED WIRELESS PROCESS COMMUNICATION GATEWAY
A method for connecting a field device (200) to a wireless process communication network (16) is provided. The method comprises bringing the wireless field device (200) within a proximity of a wireless gateway (400). The method also comprises establishing a connection between an NFC transceiver (430) associated with the wireless gateway (400) and an NFC tag (210) associated with the wireless field device (200). The method also comprises generating a near field communication between the wireless gateway (400) and the field device (200) to exchange wireless field device access information. The method also comprises using the wireless field device (200) access information to allow the wireless field device (200) to communicate over the wireless process communication network (16). A method is also provided for configuring a wireless process communication adapter (410) at a wireless gateway (400) using NFC communication and then subsequently coupling the configured wireless process communication adapter (410) to a field device (200).
A pressure sensor (100) includes an elongate body (202) which deforms in response to an applied pressure having a cavity (204) formed therein. An isolation diaphragm (214) seals the cavity (204) from a process fluid and is configured to deflect in response to applied process pressure from the process fluid. An isolation fill fluid in the cavity (204) applies pressure to the elongate body (214) in response to deflection of the isolation diaphragm (214) thereby causing deflection of the elongate body (202). A deformation sensor (240) is coupled to the elongate body (202) and provides a sensor output in response to deformation of the elongate body (214) which is indicative of the process 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 19/00 - 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 battery powered device (200) includes a battery (212) and a motor controller (202) that is coupled to the battery (212). A motor (204) is operably coupled to the motor controller (202). The motor controller (202) is configured to detect an amount of available power from the battery (212) and engage the motor (204) based on the amount of available power.
H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
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
H02P 31/00 - Arrangements for regulating or controlling electric motors not provided for in groups , or
44.
NON-INTRUSIVE PROCESS FLUID TEMPERATURE CALCULATION SYSTEM
A process fluid temperature calculation system includes a first temperature sensor disposed to measure an external temperature of a process fluid conduit. The process fluid temperature calculation system has a stem portion having a known thermal impedance. A second temperature sensor is spaced from the first temperature sensor by the stem portion. Measurement circuitry is coupled to the first and second temperature sensors. A microprocessor is coupled to the measurement circuitry to receive temperature information from the measurement circuitry and to provide an estimate of temperature of process fluid within the process fluid conduit using a heat flux calculation.
A method (300) of automatically configuring a remote indicator (100) is provided. The method (300) includes placing (302) the remote indicator (100) within near field communication range of an operating field device (50). Configuration information is wirelessly exchanged (304) between the remote indicator (100) and the field device (50). The remote indicator (100) is coupled to receive process information (308). Process information is received through the coupling and displayed (310) on a display (103) of the remote indicator (100). A field device (400,500) and remote indicator are also provided.
G08C 17/00 - Arrangements for transmitting signals characterised by the use of a wireless electrical link
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
A flange (200) for process field devices includes a first end (300), a second end (302), and a first mounting area (204) for mounting a first field device (270) between the first end (300) and the second end (302). The first mounting area (204) has a first device port (216) positioned in the first mounting area (204) to allow fluid communication with the first field device (270). A second mounting area (206) on the flange is for mounting a second field device (272) between the first end and the second end. The second mounting (206) area has a second device port (228) positioned in the second mounting area (206) to allow fluid communication with the second field device (272). A connection port that provides fluid to the flange is located on the first end of the flange. An internal chamber (232) fluidly connects the connection port to the first device port and the second device port.
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 55/07 - Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
G01F 1/34 - 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
G01F 1/76 - Devices for measuring mass flow of a fluid or a fluent solid material
47.
IN-LINE PROCESS FLUID PRESSURE TRANSMITTER FOR HIGH PRESSURE APPLICATIONS
An in-line process fluid pressure transmitter (100) is provided. The transmitter (100) includes a process fluid connector (102) configured to couple to a source of process fluid. A plug (190) is coupled to the process fluid connector (102) and has a passageway (181) configured to convey fluid to a distal end (183) of the plug (190). A pressure sensor subassembly (180) is coupled to the plug (190) at a weld (187). The pressure sensor subassembly (180) has a pressure sensor (185) operably coupled to the distal end (183) of the passageway (181) such that the pressure sensor (185) reacts to process fluid pressure. The plug (190) includes a sidewall (186) encircling the weld (187). Transmitter electronics are coupled to the pressure sensor (185) and configured to measure an electrical characteristic of the pressure sensor (185) and provide a process fluid pressure value based on the measured electrical characteristic.
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
An industrial process monitor (14) for monitoring an industrial process includes a controller (34) configured to control operation of the industrial process monitor. An ambient environment sensor (74) is configured to sense an ambient environment of the industrial process proximate the device (14) and responsively provide a sensor output signal. Output circuitry (32) is configured to provide an output based upon the sensor output signal. The controller (34) causes the ambient environment sensor to enter a high power mode upon detection of an anomaly and/or probable anomaly in the sensor output signal.
G01D 3/02 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for altering or correcting the transfer function
G01D 3/024 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for altering or correcting the transfer function for range change; Arrangements for substituting one sensing member by another
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
An acoustic measurement system 300 for an industrial process asset 114 includes a process measurement device 102 providing a value representative of an acoustic signal near the industrial process asset 114 based in part on a signal from an acoustic sensor 104 positioned near the industrial process asset 114. A second acoustic sensor 316 provides an acoustic value and a noise reduction component 324 uses the acoustic value from the second acoustic sensor 316 to affect the value provided by the process measurement device 102 so that the value provided by the process measurement device 102 is more representative of an acoustic signal generated by the industrial process asset 114.
G01N 29/14 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
A wireless field device (100) for use in monitoring acoustic noise includes an acoustic sensor (102) configured to sense acoustic noise. Processing circuitry (114) coupled to the acoustic sensor (102) is configured to identify a hazardous noise condition based upon the sensed acoustic noise and a personnel noise exposure standard. Output circuitry (106) provides a warning output in response to an identified noise condition. A system (700) is also provided which uses one or more acoustic sensors implemented in wireless field mounted monitors.
A diagnostic field device (12) for detecting a condition of a process conduit (32) includes an infrared detector (100) comprising a plurality of pixels (120) configured to receive infrared radiation from the process conduit and responsively provide a plurality of pixel outputs. A first pixel of the plurality of pixels is configured to receive infrared radiation from a first location on the process conduit (32). A second pixel of the plurality of pixels is configured to receive infrared radiation from a second location on the process conduit (32). A memory (26) contains thermal profile information which relates an output from the first pixel to a first temperature at the first location and relates an output from the second pixel to a second temperature at the second location. A microprocessor (24) identifies a process anomaly based upon outputs from the first and second pixels. Output circuitry (30) provides a diagnostic output indicative of the identified process anomaly.
A process variable transmitter includes transmitter circuitry for determining a process variable from a sensor signal produced using a process sensor. The transmitter circuitry has at least one operating parameter. The process variable transmitter also includes a wireless communication module configured to be powered by a two- wire process control loop. The wireless communication module is capable of communicating wirelessly with a general-purpose mobile device using a general-purpose wireless communication standard such that the wireless communication module can instruct the transmitter circuitry to change a value of the at least one operating parameter based on a wireless message received from the general-purpose mobile device.
A process variable transmitter (260) for sensing a process variable of process fluid in an industrial process includes a process gasket (200) having a surface configured to form a seal with a process vessel face. The process gasket (200) is exposed to the process fluid through an opening in the process vessel face. A process variable sensor (220) is carried by the process gasket (200) and configured to sense a process variable of the process fluid and provide a sensor output (222). Measurement circuitry (282) coupled to the process variable sensor (220) provides a process variable transmitter output related to the process variable output.
G01D 11/00 - Component parts of measuring arrangements not specially adapted for a specific variable
G01D 5/12 - 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 electric or magnetic means
G01K 1/14 - Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
A temperature sensor assembly for use with a process vessel wall includes a base structure, a first temperature sensor, a second temperature sensor, and a processor. The base structure forms a contact area with an external surface of the process vessel wall. The first temperature sensor extends through the base structure to measure a temperature of the external surface of the process vessel wall. The second temperature sensor is at a second surface spaced from the first surface to measure a temperature of the second surface of the base structure. The processor is connected to the first and second temperature sensors, and adapted to determine an internal process vessel wall temperature value as a function of the measured temperature of the external surface of the process vessel wall, the measured temperature of the second surface of the base structure, base structure parameters, and process vessel wall parameters.
A field device (12) for monitoring a process variable of an industrial process includes an image capture device (100). A process component (106) exhibits relative motion as a function of a process variable. The image captures device (100) captures an image which changes due to the relative motion of the process component (106). An image processor (102) coupled to the image capture device (100) detects relative motion of the process component (106) and measures the process variable based upon the detected relative motion. Output circuitry (30) provides an output related to the measured process variable.
G05D 1/00 - Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot
G05B 1/00 - Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
G05B 23/00 - Testing or monitoring of control systems or parts thereof
A non-intrusive sensor system includes an array of sensors disposed in a process to measure various input process phenomena and a logic unit that analyses the sensor measurements using an empirical model to produce an estimate of a further process phenomenon not measured directly by any of the array of sensors. The sensors within the array of sensors may be non-intrusive sensors that measure input process phenomena in an intrusive or non-intrusive manner but are non-intrusive with respect to the output process phenomenon as none of these sensors comes into direct contact with the process fluid or process element exhibiting the output process phenomenon. The sensors within the array of sensors can be any type of sensors that produce a measurement of a particular process phenomenon at the same or at different locations within a process.
G05B 17/02 - Systems involving the use of models or simulators of said systems electric
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
57.
WIRELESS INDUSTRIAL PROCESS FIELD DEVICE WITH IMAGING
A wireless field device (14) for use in an industrial process control or monitoring system includes a controller (34) configured to control operation of the wireless field device (14). Wireless communication circuitry (32) is configured to wirelessly communicate with a remote location. An internal power source (36) powers the wireless field device (14). An image capture device (74) is coupled to the controller (34) and configured to capture an image of an environment (75) of the wireless field device (14). The controller (34) is adapted to receive image information from the image capture device (74) and transmit compressed image information to the remote location.
H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
G08B 13/196 - Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
A sensing system includes a filter construction module (930) that constructs a high pass filter (902) for filtering sensor values indicative of a process variable. The filter construction module (930) setting values for parameters of the filter based on a temperature value indicative of a temperature of the sensor (246) that produced the sensor values.
A process fluid pressure measurement probe (100) includes a pressure sensor (112) formed of a single-crystal material and mounted to a first metallic process fluid barrier (130) and disposed for direct contact with a process fluid. The pressure sensor (112) has an electrical characteristic that varies with process fluid pressure. A feedthrough (122) is formed of a single-crystal material and has a plurality of conductors extending from a first end to a second end. The feedthrough (122) is mounted to a second metallic process fluid barrier (116) and is spaced from, but electrically coupled to, the pressure sensor (112). The pressure sensor (112) and the feedthrough (122) are mounted such that the secondary metallic process fluid barrier (116) is isolated from process fluid by the first metallic process fluid barrier (116).
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
60.
IN SITU PROBE WITH IMPROVED DIAGNOSTICS AND COMPENSATION
A process combustion transmitter (10) is provided. The transmitter (10) includes a process probe (12) extendible into a flow of process combustion exhaust. The process probe (12) has a measurement cell (36) and a diffuser (32) that define a chamber (52) within the process probe. Electronic circuitry (42) is coupled to the measurement cell (32) and is configured to provide an indication relative to a combustion process based on an output signal of the measurement cell (32). A pressure sensor (50) is coupled to the electronic circuitry (42) and is fluidically coupled to the chamber (52). The electronic circuitry (42) is configured to provide an adjusted calibration based on pressure measured within the chamber (52) during a calibration.
A sensor system comprises a process transducer, a unpowered vibration sensor, and a process transmitter. The process transducer is disposed within a thermowell and configured to produce a first sensor signal. The unpowered vibration sensor is configured to produce a second sensor signal reflecting vibration of the thermowell. The process transmitter is configured to receive, process, and transmit the first and second sensor signals.
G01K 1/00 - MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR - Details of thermometers not specially adapted for particular types of thermometer
G01H 17/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass
G01K 11/22 - Measuring temperature based on physical or chemical changes not covered by group , , , or using measurement of acoustic effects
A process combustion transmitter (10) is provided. The transmitter (10) includes a process probe (12) extendible into a flow of process combustion exhaust. The process probe (12) has a measurement cell (36) with an operating temperature that is above a flashpoint of process combustion fuel. The process probe (12) includes a heater (38) configured to heat the measurement cell (36) to the operating temperature. Electronic circuitry is coupled to the measurement cell (36) and to the heater (38). The electronic circuitry is configured to disengage power to the heater (38) once process combustion heat is sufficient to maintain the measurement cell (36) at the operating temperature and thereafter to maintain the heater (38) in a de-energized state.
A process temperature transmitter (12) is operable with at least one temperature sensor (32) having a plurality of leads. The temperature transmitter (12) includes measurement circuitry (26) operably coupleable to the at least one temperature sensor (32) to provide an indication of an electrical parameter of the at least one temperature sensor (32). A controller (30) is coupled to the measurement circuitry (26) to obtain the indication and provide a process temperature output. A current source (28) applies a test current to the plurality of leads simultaneously. Diagnostic circuitry (70) measures a voltage response on each lead in order to provide a diagnostic indication of the temperature sensor.
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 15/00 - Testing or calibrating of thermometers
64.
WIRELESS FIELD DEVICE HAVING A RECONFIGURABLE DISCRETE INPUT/OUTPUT CHANNEL
A wireless field device (12) for use in an industrial process includes input/output terminals (40) configured to couple to a process interface element (16). A discrete input/output channel (24) is configured to receive a discrete input from the process interface element through the input/output terminals (40) when configured as a discrete input channel. The discrete input/output channel (24) is further configured to provide a discrete output to the process interface element (16) through the input/output terminals (40) when the discrete input/output channel (24) is configured as discrete output channel. Wireless communication circuitry (48) is configured to transmit and receive information. A controller (44) communicates information through the wireless communication circuitry (48) and operates in accordance with configuration information to configure the input/output channel (24) as an input channel when the input/output terminals (40) are connected to a discrete process variable sensor, and further configure the discrete input/output channel as a discrete output channel when the input/output terminals are coupled to a discrete control element.
A sensor tube (12, 120) for protecting a sensor (13) inserted into a moving process fluid is provided. The sensor tube (12, 120) includes a process interface section (16) for mounting to a process vessel and an extended section extending from the process interface section (16) to a sealed end (22, 404). The extended section includes a twisted section (20) having a longitudinal axis. The process interface section (16) and the extended section define a sensor bore (36) configured to receive a sensor (13) therein. The twisted section (20) has a cross section that includes at least three equally sized walls and wherein the walls form helixes along the longitudinal axis of the twisted section.
A process transmitter for sensing a process variable includes a transmitter housing, a sensor, transmitter circuitry, a passageway and a flame arrestor. The transmitter housing has an interior. The sensor is disposed within the interior, senses a process variable of an industrial process and generates a sensor signal. The transmitter circuitry is disposed within the interior and connects to the sensor. The passageway is in communication with the sensor and extends through the interior of the transmitter housing. The passageway has a first cross-sectional profile. The flame arrestor is positioned in the passageway. The flame arrestor has a second cross-sectional profile different from the first cross-sectional profile. The flame arrestor produces a path in an interior of the passageway having a smaller cross-sectional area than that of the first cross-sectional profile of the passageway.
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
A62C 4/00 - Flame traps allowing passage of gas but not of flame or explosion wave
G01D 11/00 - Component parts of measuring arrangements not specially adapted for a specific variable
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
67.
WIRELESS MEASUREMENT TRANSMITTER WITH REPLACEABLE MODULE
A measurement transmitter (100) includes a main housing body (102B) with a first cavity (104) closed by a first cover (102A) and a second cavity (106) closed by a second cover (102C). A measurement circuit assembly in the first cavity (104) includes power and service communication conductors (112) that extend through the main housing body (102B) to contacts (116) in the second cavity (106). A replaceable module (120) plugs into the contacts (116) in the second cavity (106) and includes a primary battery (150) and a service communication connector (122). The service communication connector (122) is exposed for connection to service equipment by removal of the second cover (102C).
A process instrument includes a transducer (12), a two wire interface (34a, 34b), a microprocessor (20), a digital to analog converter (22), a first control circuit (23a, 23b, 23c, 23d, 23e, 24, 26, 28, 30, 32), and a second control circuit (38). A current (IL) passing through the two wire interface indicates a condition of the transducer (12). The microprocessor (20) is interfaced with the transducer (12). The digital to analog converter (22) receives a signal from the microprocessor (20) indicating a current value. The first control circuit (23a, 23b, 23c, 23d, 23e, 24, 26, 28, 30, 32) is coupled to the digital to analog converter (22) and adapted to control the current (IL) passing through the two wire interface (34a, 34b) to the current value. The second control circuit (38) is coupled to the digital to analog converter (22) and supplies current to a secondary load (50).
69.
MODULAR INTRINSICALLY-SAFE FIELD DEVICE POWER MODULE
A modular, intrinsically- safe power module assembly (12) is provided. The assembly includes a rigid conduit adapter (22) configured to mount to a conduit (20) of a field device (10). A housing (66), having an interior, is operably coupled to the rigid conduit adapter (22) and is physically supported by the rigid conduit adapter (22). At least one non-rechargeable battery (64, 164) is disposed within the housing (66). Intrinsic safety circuitry (500) is coupled to the at least one non-rechargeable battery (64, 164), and is coupled to a connector that mates with a cooperative connector (62) in the rigid conduit adapter (22).
A first node A sends a first message to a second node B. The second node B sends a second message to the first node. A first elapsed time is measured from the beginning of the transmission of the first message to the beginning of receipt of the second message. A second elapsed time is measured from the beginning of the receipt of the first message to the beginning of the transmission of the second message. The second node B sends a third message to the first node A containing the second elapsed time. The distance between the first and second node A, B is calculated based on these elapsed times and a calibration count multiplier contained in the second or third message. A node may be moved within a wireless mesh network. Positional information about the node and distances to its neighbors is determined and transmitted to the network manager where it is stored.
A process variable transmitter (12) for use in an industrial process control or monitoring system includes a transmitter housing and a process variable sensor (72) having a sensor output related to a process variable. An accelerometer (80) is coupled to the transmitter and provides an accelerometer output related to acceleration. Diagnostic circuitry (82) provides a diagnostic output as a function of the sensor output and the accelerometer output.
An industrial process field device (200) has a housing (202) with a wall (204) . The wall has a feedthrough opening (207) between a battery compartment (208) and an electronics compartment (206) . A feedthrough connector (230) seals the feedthrough opening and includes a power connector (234,236) connected to industrial process field device electronics (212) . A battery assembly (216) includes a battery housing with a battery connector (244) , and includes a battery (242) and an energy limiter (240) connected to the battery connector. The battery connector mates with the power connector to energize the industrial process field device electronics. A seal (250) seals the mating connection of the power connector and the battery connector.
H01R 24/28 - Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
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
A field device including a housing having an outer surface and an inner surface surrounding a main cavity. The housing further includes an aperture extending from the main cavity to the outer surface. An electrical component is located within the main cavity of the housing. An antenna is in electrical communication with the electrical component. The field device further includes a rotatable mount attached to the housing. The mount has a channel extending from a first end to a second end of the mount. A cable is electrically connected to the electrical component and the antenna and the cable extends through at least a portion of the channel.
A field device (100) including a housing (102) having an outer surface (103) and an inner surface (105) surrounding a main cavity (117). The housing (102) further includes an aperture (114) extending from the main cavity (117) to the outer surface (103). An electrical component (28) is located within the main cavity (117) of the housing. An antenna (18) is in electrical communication with the electrical component (28). The field device (100) further includes a rotatable mount (110) attached to the housing (102). The mount (110) has a channel (120) extending from a first end (118) to a second end (122) of the mount. A cable (182) is electrically connected to the electrical component (28) and the antenna (18) and the cable (182) extends through at least a portion of the channel (120).
A method (200) of controlling a liquid crystal display (LCD) (110) integrated within a sensing device for operation in cold temperature is provided. The method (200) includes providing electrical power to the LCD (110), providing an electrical signal to the LCD (110) to update displayed information, measuring (206) the ambient temperature proximate the LCD (110) and making adjustments to the power and update information supplied to the LCD (110) based on the ambient temperature. Another aspect of the invention includes a field device (10) including an LCD (110), an electronic control module (120) configured to provide power and communication signals to the LCD (110), and a temperature sensor (112) coupled to the electronic control module (120). The electronic control module (120) is configured to measure the temperature proximate the LCD (110) and control power and communication supplied to the LCD (110) based on the temperature at the LCD (110).
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
A wireless field device (34, 50, 70, 80, 91, 100) is disclosed. The field device (34, 50, 70, 80, 91, 100) includes a wireless communications module (32) and an energy conversion module (38) . The wireless communications module (32) is configured to wirelessly communicate process-related information with another device. The energy conversion module (38) is coupled to the wireless communications module (32) . The energy conversion module (38) is configured to couple to a thermal source, and to generate electricity from thermal potential energy in the thermal source.
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