Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1986-11-06
1994-07-26
Pellinen, A. D.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
338195, 73 6441, G01R 2702
Patent
active
053329619
ABSTRACT:
An on-board oil quality sensor for use in an internal combustion engine formed of a pair of resisitve elements mounted on a common substrate, wherein one of the resistive elements is exposed to the oil for corrosion as the oil contaminants increase and the other resistive element is protectively sealed from the oil contaminants. Both resistive elements are exposed to the oil temperature and are suitable for monitoring by a bridge type circuit to determine the level of corrosive contaminants in the oil.
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Ford Motor Company
Godwin Jr. Paul K.
Pellinen A. D.
Sadler Clifford L.
Williams H. L.
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