Oil condition detecting apparatus

Details Oil condition detecting apparatus Oil condition detecting apparatus

1987-12-18

1988-11-15

Levy, Stewart J.

Communications: electrical

Condition responsive indicating system

Specific condition

73 64, G08B 2100

Patent

active

047852879

ABSTRACT:
An instrument for detecting the condition of an oil is provided in which an ultrasonic wave having a predetermined waveform is propagated through the oil and assumes a change in waveform in accordance with the particular condition of the oil. The instrument includes an arrangement in which any change in the waveform of the propagated ultrasonic wave is translated into a change in terms of time involving the waveform, which is used for the detection of the particular condition of the oil.

REFERENCES:
patent: 3876935 (1975-04-01), Guillermie et al.
patent: 4008464 (1977-02-01), Hobbie
patent: 4345202 (1982-08-01), Nagy et al.
patent: 4646070 (1987-02-01), Yasuhara et al.

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