Sensor arrangement for detecting moisture on a window

Details Sensor arrangement for detecting moisture on a window Sensor arrangement for detecting moisture on a window

2011-01-04

2011-01-04

Wu, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C073S335040, C073S029010, C073S170170, C324S664000, C324S658000

Reexamination Certificate

active

07864063

ABSTRACT:
An especially simple and economical moisture sensor with temperature compensation is provided. To this end, in addition to a measuring capacitor, a second capacitor is arranged on a window of a motor vehicle, wherein the second capacitor is not affected by the moisture and/or water droplets. For analysis, a differential measurement of the capacitances of the measuring capacitor and of the second capacitor is carried out, from which is determined a degree of wetting of the window not influenced by the window temperature.

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