Abstract: A sensor apparatus for examining a sample gas volume, particularly for capturing the particulate matter content of a sample gas volume, includes at least one measuring chamber to accommodate the sample gas that is to be analysed, and at least one sample gas feed allocated to the measuring chamber and with at least one sample gas discharge allocated to the measuring chamber, in which it is provided as essential for the invention that at least one cleaning gas feed is allocated to the measuring chamber, that the cleaning gas feed is connected to the measuring chamber via at least one cleaning gas inlet, that a condensation area is allocated to the cleaning gas feed, and that the condensation area is arranged in front of the cleaning gas inlet of the cleaning gas feed into the measuring chamber.

Abstract: In a measurement device for measuring fine particulate matter in at least one volume of air for a vehicle, particularly for a motor vehicle, having at least one laser light source, having at least one calibration device assigned to the laser light source, and having at least one measurement chamber, it is provided according to the invention that the at least one laser light source is assigned to at least two measurement chambers, the measurement chambers are formed by segments of air handling ducts to direct the air volumes to be tested, and at least one optical receiving device is assigned to each measurement chamber.

Abstract: In a measurement device for measuring fine particulate matter in at least one volume of air for a vehicle, particularly for a motor vehicle, having at least one laser light source, having at least one calibration device assigned to the laser light source, and having at least one measurement chamber, it is provided according to the invention that the at least one laser light source is assigned to at least two measurement chambers, the measurement chambers are formed by segments of air handling ducts to direct the air volumes to be tested, and at least one optical receiving device is assigned to each measurement chamber.

Abstract: In a holding device for a sensor, in particular for a rain/light sensor, for mounting on the inner side of a window pane, such as a vehicle pane or suchlike, with at least one holder able to be fastened on the window pane, which holder has a mount for the sensor, and with at least one spring component for fixing the sensor in the mount of the holder, the spring component has detent means for at least a partially detachable connection to the holder. The spring component comprises a spring section with a snap function, which is constructed such that the spring section is in one of two stable spring positions, wherein in one spring position a spring force acts on the sensor.

Abstract: In a holding device for a sensor, in particular for a rain/light sensor, for mounting on the inner side of a window pane, such as a vehicle pane or suchlike, with at least one holder able to be fastened on the window pane, which holder has a mount for the sensor, and with at least one spring component for fixing the sensor in the mount of the holder, the spring component has detent means for at least a partially detachable connection to the holder. The spring component comprises a spring section with a snap function, which is constructed such that the spring section is in one of two stable spring positions, wherein in one spring position a spring force acts on the sensor.

Abstract: Particularly simple selection of data in all of the operating phases for a technical installation is achieved according to the invention, in a method for processing data which are user-specifically stored in different data memories. The functional groups for process control and the functional groups for the installation are each assigned to a selection field of a common selection mask. When one of the selection fields is selected, the respective process data relevant to the process control of the installation or installation data relevant to the installation are selected and displayed in a further display level.