Oil quality sensor measuring bead volume

Details Oil quality sensor measuring bead volume Oil quality sensor measuring bead volume

1996-10-15

1998-07-07

Williams, Hezron E.

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

204409, 324449, 324663, 324698, 338 96, 422 8201, 422 8202, 200 6104, 200 6105, G01N 2726, G01N 3330

Patent

active

057772100

ABSTRACT:
Method and apparatus for determining deterioration of e.g. lubricating oil by measuring the contraction of a polymeric matrix (support) holding charged ionic groups. The support contracts due to oil quality degradation. The expansion/contraction is detected e.g. electrically.

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Mike Allen, "CAR CLINIC -Dirty Deads Done Dirt Cheap", Popular Mechanics, Aug. 1993, p. 71.

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