Measuring system for measuring the variation of the capacitive i

Details Measuring system for measuring the variation of the capacitive i Measuring system for measuring the variation of the capacitive i

1982-06-17

1985-04-16

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

340682, G01R 2726

Patent

active

045118370

ABSTRACT:
A system for measuring the variation in the capacitance of a bearing installed on a shaft in a housing. It is shown to include an electrically conductive measuring ring interposed between the bearing and the housing, an insulating layer surrounding the measuring ring wherein the insulating layer between the bearing and the measuring ring is considerably thinner than the remaining portion of the insulating layer, and measuring means connected to the measuring ring and the shaft to measure the variations in the capacitance of the bearing. In such a system, capacitance measurements are made without significant interference from the capacitance existing between the housing and the shaft.

REFERENCES:
patent: 3000101 (1961-09-01), Giardino et al.
patent: 3176286 (1965-03-01), Dschen
patent: 3904940 (1975-09-01), Burrus

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