Robert Boschgmbh

Karl Wenzel

Norbert Schneider

Rolf Reischl

Axel-Werner Haag

Metin Guerer

A circuit system for measuring a sensor element capacitance of a sensor element, in particular of a capacitive humidity sensor, including: the sensor element, which has the sensor element capacitance; a charge storage element, which is connected directly, or only via a resistor element, in series to the sensor element; and a control unit, which is configured to charge the charge storage element to a reference voltage and to successively transfer the charge via the sensor element capacitance until the charge storage element has reached a particular comparison voltage, the sensor element number of transfer processes thus ascertained representing information about the sensor element capacitance of the sensor element.

Growing community of inventors

Stuttgart, Germany

Karl Wenzel