Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1991-12-11
1993-11-16
Wieder, Kenneth A.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324663, 324686, 324553, 324204, 324232, 73 5305, G01R 2726, G01N 2774
Patent
active
052627322
ABSTRACT:
An apparatus for detecting the degree of deterioration in lubricating oil including a grid-like capacitive sensor, that uses the lubricating oil as a dielectric medium, and a magnetic field imposed upon the oil to attract ferromagnetic wear particles into the vicinity of the sensor. Preferably, the magnetic field is generated by a permanent magnet and an electromagnetic aligned such that the magnetic field produced by each magnet acts upon the oil along the same axis.
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Dickert Arby D.
Hawn Keith A.
Johnson Eric L.
Kirkpatrick James F.
Brown Glenn W.
Computational Systems Inc.
Wieder Kenneth A.
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