Abstract: A method for calibrating an optical fluid sensor, the method including providing a calibration element having defined properties similar to those of a fluid to be measured; simulating optical characteristics of the fluid to be measured, with the aid of the calibration element, a measuring radiation being routed onto the calibration element, and evaluating the measuring radiation modified by the calibration element, at least one calibration point of the fluid being ascertained with the aid of the calibration element.

Abstract: A spectroscopic sensor device comprising an absorption path for receiving at least one fluid medium that is to be analyzed, an infrared radiation source for sending out infrared radiation into the absorption path, an infrared sensor array that has a multiplicity of pixels that can be individually evaluated, which are fashioned to detect the infrared radiation propagated from the infrared radiation source through the fluid medium as individual pixel measurement signals, and comprising an evaluation device that is fashioned to combine a multiplicity of pixel measurement signals of the pixels and to output them via an individual measurement channel. Furthermore, a method for operating a spectroscopic sensor device is also described.

Abstract: A method for calibrating an optical fluid sensor, the method including providing a calibration element having defined properties similar to those of a fluid to be measured; simulating optical characteristics of the fluid to be measured, with the aid of the calibration element, a measuring radiation being routed onto the calibration element, and evaluating the measuring radiation modified by the calibration element, at least one calibration point of the fluid being ascertained with the aid of the calibration element.

Abstract: A spectroscopic sensor device comprising an absorption path for receiving at least one fluid medium that is to be analyzed, an infrared radiation source for sending out infrared radiation into the absorption path, an infrared sensor array that has a multiplicity of pixels that can be individually evaluated, which are fashioned to detect the infrared radiation propagated from the infrared radiation source through the fluid medium as individual pixel measurement signals, and comprising an evaluation device that is fashioned to combine a multiplicity of pixel measurement signals of the pixels and to output them via an individual measurement channel. Furthermore, a method for operating a spectroscopic sensor device is also described.

Abstract: An IR sensor system, an IR sensor module, a temperature detection module and a corresponding calibration method are provided. The IR sensor system has an IR sensor module including a pixelated IR detection area, which has a first control unit for controlling an IR measuring operation and a calibration operation, and a storage unit connected to it, and including a temperature detection module which is detectable in a pixel subarea of the IR detection area, the temperature detection module having a temperature sensor device and a second control unit connected to it. The geometric position of the pixel subarea on the IR detection area is storable in the storage unit.

Abstract: An IR sensor system, an IR sensor module, a temperature detection module and a corresponding calibration method are provided. The IR sensor system has an IR sensor module including a pixelated IR detection area, which has a first control unit for controlling an IR measuring operation and a calibration operation, and a storage unit connected to it, and including a temperature detection module which is detectable in a pixel subarea of the IR detection area, the temperature detection module having a temperature sensor device and a second control unit connected to it. The geometric position of the pixel subarea on the IR detection area is storable in the storage unit.

Abstract: A method and an analysis unit for analyzing the measured variables of a gas sensor, and a gas sensor which is operated using this method, provides that the fundamental method detects measured variables of a gas sensor, which represent the concentration of the gas to be monitored. Subsequently, two analysis modes are provided in the method, which differ essentially due to the speed and precision of the measured variable analysis. In a first analysis mode, at least one measured variable and/or the difference between two successive measured variables is compared to a threshold value. Depending on the output of the comparison, subsequently a first gas concentration signal is generated or not. The situation is similar in the second analysis mode, an average value calculation of at least two measured variables being carried out here and a second gas concentration signal being generated as a function of the result.

Abstract: A magnetic field sensor includes: a circuit board having a first surface, a second surface opposite to the first surface, and a recess extending from the first surface to the second surface; a Hall sensor component having a Hall sensor situated in a housing, the Hall sensor component having an active sensor area situated parallel to the first surface and in the area of the recess on the side of the second surface on the circuit board; and a first magnetic flux concentrator made of a magnetically permeable material and situated on the side of the first surface opposite to the Hall sensor component, the magnetic flux concentrator having a lateral surface which faces away from the circuit board and includes a first surface area and a lateral surface which faces toward the circuit board and includes a second surface area which is smaller than the first surface area.

Abstract: A magnetic field sensor includes: a circuit board having a first surface, a second surface opposite to the first surface, and a recess extending from the first surface to the second surface; a Hall sensor component having a Hall sensor situated in a housing, the Hall sensor component having an active sensor area situated parallel to the first surface and in the area of the recess on the side of the second surface on the circuit board; and a first magnetic flux concentrator made of a magnetically permeable material and situated on the side of the first surface opposite to the Hall sensor component, the magnetic flux concentrator having a lateral surface which faces away from the circuit board and includes a first surface area and a lateral surface which faces toward the circuit board and includes a second surface area which is smaller than the first surface area.

Abstract: A spectroscopic gas sensor is disclosed, which has at least: an IR radiation source for emitting IR radiation, a measuring volume to be completely or partially filled with an air supply volume, in particular an exhaled air, a detector unit having at least one, preferably two detector elements for detecting the IR radiation passing through the measuring volume in at least one first wavelength range and outputting measuring signals, and an analyzer unit for recording the measuring signals and ascertaining a concentration of a measured substance in the air supply volume. A first detector element measures IR radiation in a wavelength range of an absorption band of the measured substance, and the analyzer unit ascertains a concentration of the measured substance in the air supply volume from the ascertained concentrations of the measured substance and a further component in the measuring volume.

Abstract: An evaluation device for evaluating analog measuring signals of a detector, e.g., an IR detector, includes: an analog/digital converter device for digitally converting the analog measuring signal of the detector or an analog signal derived from the analog measuring signal into a digital measuring signal; a control device for receiving the digital measuring signal; and a subtraction device. The evaluation device receives a first analog measuring signal from a first measurement and stores the digital measuring signal formed from the first analog measuring signal, and also receives a second analog measuring signal from a second measurement. The subtraction device receives the analog measuring signal of the second measurement and an analog comparison signal formed as a function of the stored digital measuring signal of the first measurement, and forms a differential signal.