The device according to the invention for an optical in-situ analysis of a process gas component of a process gas comprises a gas conduction channel and an optical transmitter for emitting a light beam into a measuring section, a light receiver for receiving scattered and/or transmitted light from the measuring section, and an evaluation unit for determining data about the process gas component from the received light intensity. The measuring section is located in a gas-tight housing which has at least one opening leading to the gas conduction channel. A filter is located in the opening. Process gas is conveyed on a first gas conveying path through the filter into the gas-tight housing and back out of the housing by means of a gas conveying system. According to the invention, a wall lying opposite an inflow face of the filter is provided at least in the region of the opening, forming a gap between the filter and the wall. In said gap, the process gas is conveyed by the gas conveying system or by a second gas conveying system, through the gap on a second gas conveying path, thereby forming, in the region of the filter, a second gas flow along said filter.
G01N 1/22 - Devices for withdrawing samples in the gaseous state
G01N 21/85 - Investigating moving fluids or granular solids
G01N 21/53 - Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
G01N 21/15 - Preventing contamination of the components of the optical system or obstruction of the light path
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
G01N 21/33 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
2.
SENSOR DEVICE FOR DETECTING A TARGET OBJECT INFLUENCED BY A PROCESS OR FORMED DURING THE PROCESS
A sensor device for detecting a target object which is influenced by a process or is formed during the process comprises a sensor unit and an analysis device. The sensor unit is designed to detect the target object in a detection region of the sensor unit and to generate a sensor signal which can be influenced by the target object. The analysis device is designed to process the sensor signal as a first input variable and to generate an output signal on the basis of the sensor signal, said output signal indicating the detection of the target object. Furthermore, the analysis device is designed to process a process parameter acting on the target object and/or a target object parameter, which characterizes the target object and is influenced by the process, as a respective additional input variable and to generate the output signal on the basis of the process parameter and/or the target object parameter.
The invention relates to a device for taking and treating a fluid sample from a liquid gas line, said device comprising a sample line having an open line end that can be inserted into the liquid gas line, and an evaporator unit arranged outside the liquid gas line, for at least partial evaporation of liquids flowing through the sample line. The evaporator unit comprises at least one heatable body, a first evaporation section of the sample line extending in a downwards helix and being in heat-conducting contact with the heatable body, and a second evaporation section of the sample line, located downstream of the first evaporation section, extending in an upwards helix and also being in heat-conducting contact with the heatable body, and/or the open line end (29) is embodied on a sampling section (27) of the sample line (25), which has a line cross-section smaller than the subsequent sample line section.
A sensor (10) for a roller conveyor (16), with a transmitter (24), receiver (26) and a sensor element (12) which is integrated into a roller (14) of the roller conveyor (16), is arranged between the rollers (14) of the roller conveyor (16) or on the roller conveyor (16), and having an evaluation unit (28) for detecting objects located on the roller conveyor (16) by means of a sensor signal of the sensor element (12) is disclosed. In this context, the sensor element (12) has an antenna element (20), the sensor signal is a high-frequency signal which is fed into the antenna element (20) by the transmitter (24), irradiated and subsequently received again in the receiver (26) via the antenna element (20), and the evaluation unit (28) is designed to detect the presence of objects on the basis of influences acting on the high-frequency signal.
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
G01S 13/04 - Systems determining presence of a target
G01S 13/88 - Radar or analogous systems, specially adapted for specific applications
A sensor (10) for a roller conveyor (16), with a transmitter (24), receiver (26) and a sensor element (12) which is integrated into a roller (14) of the roller conveyor (16) or arranged between the rollers (14) of the roller conveyor (16), and having an evaluation unit (28) for detecting objects located on the roller conveyor (16) by means of a sensor signal of the sensor element (12) is disclosed. In this context, the sensor element (12) has a high-frequency line (20, 30, 34), the sensor signal is a high-frequency signal which is fed into the high-frequency line (20, 30, 34) by the transmitter (24) and subsequently received again in the receiver (26), and the evaluation unit (28) is designed to detect the presence of objects on the basis of influences acting on the high-frequency signal on the high-frequency line (20, 30, 34).
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
G01S 13/04 - Systems determining presence of a target
G01S 13/88 - Radar or analogous systems, specially adapted for specific applications
The invention relates to a sensor (10) for a roller conveyor (16), comprising a transmitter (22), a receiver (24), a sensor element (12), which is integrated into a roller (14) of the roller conveyor (16) or is arranged between rollers (14) of the roller conveyor (16), and an evaluating unit (26) for detecting objects located on the roller conveyor (16) on the basis of a sensor signal of the sensor element (12). The sensor element (12) has an HF filter element (13), the sensor signal is a high-frequency signal received in the receiver (24) after passing through the HF filter element (13), and the evaluating unit (26) is designed to detect the presence of objects on the basis of influences of said objects on the high-frequency signal by means of the HF filter element (13).
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
The invention relates to a laser scanner (10) for detecting, and determining the distance, of objects in a monitored area (20), comprising a light emitter (12) for emitting an emission light beam (16) having a plurality of successive individual light pulses, a rotatable deflection unit (18) for periodically deflecting the emission light beam (16) to the monitored area (20), an angle measuring unit (30) for generating angular position signals (62) depending on an angular position of the deflection unit (18), a light receiver (26) for generating received signals from the emission light (22) remitted or reflected by objects in the monitored area (20), a histogram memory (32a, 32b) having a plurality of memory cells, in each of which a segment of a received signal can be accumulated, and further comprising an evaluation unit (32), which is designed to identify a received pulse associated with an object in a histogram (110) taken from the histogram memory (32a, 32b), and based thereon to determine the distance of the object by means of a time of flight method, wherein the histogram (110) is collected over a time interval which is assigned to an angular position signal (62). At least two histogram memories (32a, 32b) are provided in order to collect a first histogram and a second histogram in overlapping time intervals.
G01S 7/483 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of pulse systems
The inductive sensor according to the invention is used to detect a metal object and comprises a transmitting coil arrangement (12) having at least two transmitting coils (12+16), a receiving coil arrangement having at least one receiving coil (24), and an evaluation and control unit (34), by means of which the transmitting coils can be controlled using transmitting currents, wherein the winding direction of the transmitting coils and the sign of the transmitting current amplitudes are selected in such a way that both transmitting coils produce a magnetic field having the same direction at the location of the receiving coil. The transmitting coil arrangement and the receiving coil arrangement are geometrically arranged in such a way, in particular partially overlapping, that the transmitting coils induce a voltage of zero or near zero in the receiving coil arrangement, that is, the magnetic fields substantially offset each other. This is the "balanced" state. If the induced voltage is affected by the object, the evaluation and control unit outputs a detection signal. Such a sensor can be produced at low cost and with low requirements for production tolerances, small installation space, and low assembly effort. In particular, the problem of capacitive coupling is better controlled with such a sensor.
G01V 3/10 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
9.
SENSOR DEVICE FOR A TARGET IN WHICH EDDY CURRENTS CAN BE GENERATED, AND DETECTION METHOD
Disclosed is a sensor device for a target in which eddy currents can be generated. Said sensor device comprises a transmission coil unit including a plurality of transmission coils, and a reception coil unit including at least one reception coil that lies within the range of the field applied by the transmission coils of the transmission coil unit. The reception coil unit supplies an output signal. The transmission coil unit and the reception coil unit are disposed and designed and/or the transmission coil unit is triggered in such a way that the output signal of the reception coil unit is essentially a zero signal in the absence of a target. The sensor device further comprises a triggering unit which triggers the transmission coils of the transmission coil device at the same frequency, and an evaluation unit which samples the output signal of the reception coil unit or a signal derived therefrom at one or more specific times within a certain period and obtains information on the target from the signal level at the sampling time/s.
G01D 5/20 - 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 influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
The invention relates to a method for operating an optoelectronic sensor, particularly a light barrier, during which a light emitter emits light signals having a time interval toward a monitoring area, at least some of the light signals being comprised of a number of successive individual pulses. A light receiver receives the emitted light signals. An evaluating unit processes received signals generated from the received light signals and outputs an object determination signal according to the evaluation result. According to the inventive method, a number of light signals are emitted in a regular sequence, the courses of the respective received signals being evaluated in a different manner. The invention also relates to an optoelectronic sensor that is suited for carrying out the aforementioned method.