Capacitive sensor assembly with soot build-up inhibiting coating
US5907278A · kind A · utility
22Cited by
28References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1998 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Apr 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2888
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.