Electrical sensing system for measuring ferrous particles within

Details Electrical sensing system for measuring ferrous particles within Electrical sensing system for measuring ferrous particles within

1985-05-02

1988-03-15

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Fluid material examination

324225, 324234, 324236, 340631, G01N 2774, G01R 3312

Patent

active

047315784

ABSTRACT:
This invention relates to a device for detecting electrically inductive particles in a fluid medium and is of particular use for detecting ferrous particles in the lubricant of an engine or mechanical transmissions thereby giving warning of malfunction of the engine or the transmission. The invention is of particular importance for the operation of an internal combustion engine, especially highly stressed helicopter and aircraft engines wherein prior warning of a malfunction permits corrective action prior to a catastrophic failure.

REFERENCES:
patent: 2721994 (1955-10-01), Brown
patent: 3378763 (1968-04-01), Hastings
patent: 4130792 (1978-12-01), Sullivan
patent: 4219805 (1980-08-01), Magee et al.
patent: 4519696 (1985-05-01), Bruyndonckx et al.
Ogren, V. G., Sensor Circuit Utilizing Variable Inductance Input, IBM Tech. Discl. Bull., vol. 14, No. 4, Sep. 1971, p. 1220.

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