Filter load measuring element for interior filter of air conditioning system of motor vehicle, has electromechanical sensors provided for detecting differential pressure between pure fluid side and raw fluid side of filter

摘要

The element (1) has electromechanical sensors (13) provided for detecting a differential pressure between a pure fluid side (7) and a raw fluid side (6) of a filter (3). The sensor is provided for seizing a distance (d) between a membrane (11) and the sensor, where the membrane exhibits a dielectric material. The sensor detects a change of an electrical field in dependent of a change of position of the membrane. The membrane is arranged such that the membrane separates the pure fluid side and the raw fluid side.