Capacitive sensor assembly with soot build-up inhibiting coating
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United States of America Patent
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May 25, 1999
Issued Date -
N/A
app pub date -
Apr 16, 1998
filing date -
Dec 17, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sensor assembly for measuring characteristics of motor oil in a vehicle includes a housing adapted to be mechanically coupled to a vehicle for receiving motor oil of the vehicle and at least one capacitive sensor including sensing electrodes positioned relative to the housing to measure characteristics of motor oil between the sensing electrodes. The sensing electrodes are coated with a soot build-up inhibiting coating which, in a preferred embodiment, is a silicone coating. The at least one capacitive sensor include an oil level sensor and an oil deterioration sensor in a preferred embodiment.
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