Abstract: An operator control device for operating a plurality of functions, in particular, in a vehicle, has at least a first rotary actuator and a second rotary actuator. A respective rotary actuator is assigned a function of the vehicle. The first rotary actuator has a first rotary body and a first operator control body, where the first operator control body is mechanically coupled with the first rotary body. The second rotary actuator has a second rotary body and a second operator control body, where the second operator control body is mechanically coupled with the second rotary body. The first rotary body and the second rotary body are arranged coaxially in each other such that they can be rotated about a common axis of rotation. At least one operator control body has a grip area that is designed in a lever-like manner.

Abstract: The present invention relates to optical sensor arrangements, especially sensors of the type that can be used in motor vehicles and which can detect hydrogen in a gaseous measured medium.

Abstract: A radiation source for an optical sensor arrangement has an incandescent lamp being switched by a semiconductor switch. The incandescent lamp emits a broadband light spectrum. The semiconductor switch has a control terminal driven by a control signal to switch a connection of the incandescent lamp to a supply voltage. The semiconductor switch has a first terminal which is connected to the incandescent lamp, and a second terminal which is connected to a reference potential. When the semiconductor switch is in an on state, a current path is formed between the first and second terminals. A capacitor is connected between the control terminal and the first terminal. A first resistor connects the control terminal to the control signal and a second resistor or capacitor connects the control terminal to the reference potential.

Abstract: The present invention relates to a method for measuring the presence and/or the concentration of an analyte by means of a gas sensor arrangement and to a corresponding gas sensor arrangement. The gas sensor arrangement comprises a radiation-emitting radiation source, a gas measuring chamber, which may be filled with a test gas containing at least one analyte to be measured, and at least one radiation-detecting detector device which generates an output signal as a function of the presence and/or the concentration of the analyte. In order to be able to reduce the harmful effects of condensation water, which condenses in the gas measuring chamber, the gas measuring chamber according to the invention is heated before the measurement process, such that the wall of the gas measuring chamber assumes a temperature which lies above the dew point of the test gas.

Abstract: The present invention relates to optical sensor arrangements, especially sensors of the type that can be used in motor vehicles and which can detect hydrogen in a gaseous measured medium.

Abstract: The invention relates to a method for measuring the presence and/or the concentration of an analyte using a gas sensor assembly and to a corresponding gas sensor assembly. The gas sensor assembly comprises, in particular, a radiation-emitting radiation source (102), a gas measurement chamber (104) which may be filled with a test gas (110) containing the at least one analyte to be measured, and at least one detector device (108) which detects the radiation (116) and generates an output signal which is dependent on the presence and/or the concentration of the analyte.

Abstract: A sensor array, particularly for vehicle air conditioners, having a housing, in which an electronic unit, a first sensor element connected with the electronic unit for measuring a first physical parameter, and a second sensor element connected with the electronic unit for measuring a second physical parameter, are arranged. The electronic unit has an electric signal output and an analyzing module which, as a function of momentary measuring values of the physical parameters, according to a defined selection logic, determines which of the measured physical parameters is to be considered to be the momentarily relevant parameter, and which switches a sensor signal formed on the basis of the momentarily relevant parameter to the signal output.

Abstract: A gas sensor arrangement comprises a first half-shell mateable with a second half-shell. The first half-shell has a detector receiving opening and radiation source receiving apertures. A gas measuring chamber is formed between the first half-shell and the second half-shell. The gas measuring chamber extends between the detector receiving opening and the radiation source receiving apertures. Concave mirrors are arranged around the radiation source receiving apertures. The concave mirrors are formed by inner surfaces of the first and second half-shells. Tubes extend from the concave mirrors to the detector receiving opening. The tubes are formed by the inner surfaces of the first and second half-shells. The inner surfaces are coated with a reflective material.

Abstract: A radiation source is disclosed for an optical sensor arrangement having an incandescent lamp being switched by a semiconductor switch. The incandescent lamp emits a broadband light spectrum. The semiconductor switch has a control terminal driven by a control signal to switch a connection of the incandescent lamp to a supply voltage. The semiconductor switch has a first terminal which is connected to the incandescent lamp, and a second terminal which is connected to a reference potential. When the semiconductor switch is in an on state, a current path is formed between the first and second terminals. A capacitor is connected between the control terminal and the first terminal. A first resistor connects the control terminal to the control signal and a second resistor or capacitor connects the control terminal to the reference potential.

Abstract: The invention relates to a method for measuring the presence and/or the concentration of an analyte using a gas sensor assembly and to a corresponding gas sensor assembly. The gas sensor assembly comprises, in particular, a radiation-emitting radiation source (102), a gas measurement chamber (104) which may be filled with a test gas (110) containing the at least one analyte to be measured, and at least one detector device (108) which detects the radiation (116) and generates an output signal which is dependent on the presence and/or the concentration of the analyte.

Abstract: A gas sensor arrangement for detecting the presence or concentration of an analyte in a measuring gas comprises a gas measuring chamber having an inlet for receiving the measuring gas. A measuring radiation source is arranged in the gas measuring chamber. The measuring radiation source emits radiation in a non-uniform pulse sequence according to a signal from a controller. A radiation detector receives the radiation emitted from the measuring radiation source. The radiation detector sends an output signal to the controller for processing.

Abstract: A sensor array, particularly for vehicle air conditioners, having a housing, in which an electronic unit, a first sensor element connected with the electronic unit for measuring a first physical parameter, and a second sensor element connected with the electronic unit for measuring a second physical parameter, are arranged.

Abstract: The present invention relates to a method for measuring the presence and/or the concentration of an analyte by means of a gas sensor arrangement and to a corresponding gas sensor arrangement. The gas sensor arrangement comprises a radiation-emitting radiation source, a gas measuring chamber, which may be filled with a test gas containing at least one analyte to be measured, and at least one radiation-detecting detector device which generates an output signal as a function of the presence and/or the concentration of the analyte. In order to be able to reduce the harmful effects of condensation water, which condenses in the gas measuring chamber, the gas measuring chamber according to the invention is heated before the measurement process, such that the wall of the gas measuring chamber assumes a temperature which lies above the dew point of the test gas.

Abstract: A gas sensor arrangement for detecting the presence or concentration of an analyte in a measuring gas comprises a gas measuring chamber having an inlet for receiving the measuring gas. A measuring radiation source is arranged in the gas measuring chamber. The measuring radiation source emits radiation in a non-uniform pulse sequence according to a signal from a controller. A radiation detector receives the radiation emitted from the measuring radiation source. The radiation detector sends an output signal to the controller for processing.

Abstract: A gas sensor arrangement comprises a first half-shell mateable with a second half-shell. The first half-shell has a detector receiving opening and radiation source receiving apertures. A gas measuring chamber is formed between the first half-shell and the second half-shell. The gas measuring chamber extends between the detector receiving opening and the radiation source receiving apertures. Concave mirrors are arranged around the radiation source receiving apertures. The concave mirrors are formed by inner surfaces of the first and second half-shells. Tubes extend from the concave mirrors to the detector receiving opening. The tubes are formed by the inner surfaces of the first and second half-shells. The inner surfaces are coated with a reflective material.

Abstract: A circuit configuration for providing a capacitance includes short-channel MOS transistors that are reverse-connected in series or in parallel, and that have the same channel type. When the short-channel MOS transistors are operated exclusively in the depletion mode in the required voltage range, the useful capacitance is increased, because of intrinsic capacitances, as compared with circuit configurations having conventional long-channel MOS transistors. These circuits greatly reduce the area taken up and reduce the costs.

Abstract: A circuit configuration for providing a capacitance includes short-channel MOS transistors that are reverse-connected in series or in parallel, and that have the same channel type. When the short-channel MOS transistors are operated exclusively in the depletion mode in the required voltage range, the useful capacitance is increased, because of intrinsic capacitances, as compared with circuit configurations having conventional long-channel MOS transistors. These circuits greatly reduce the area taken up and reduce the costs.