Capacitive pressure relief rupture disc monitor

Details Capacitive pressure relief rupture disc monitor Capacitive pressure relief rupture disc monitor

1981-02-02

1983-10-04

Brigance, Gerald L.

Communications: electrical

Condition responsive indicating system

Specific condition

73724, 137 68R, 340614, G08B 2100

Patent

active

044081944

ABSTRACT:
A capacitive pressure relief rupture disc monitor for use in detecting the rupture of an electrically conductive rupture disc installed in a pressure relief vent includes a flat metal loop positioned in spaced relation to the rupture disc and forming a capacitor therewith. A capacitance sensor is connected to the disc and the loop and is operative to generate an output signal in response to a selected change in the capacitance between the loop and the disc as a result of movement of portions of the disc during rupture thereof. The output signal from the capacitance sensor is operative to trigger an alarm to thereby indicate the rupture of the disc.

REFERENCES:
patent: 3352157 (1967-11-01), Seegmiller
patent: 3770918 (1973-11-01), Fortmann
patent: 3793885 (1974-02-01), Frick
patent: 3993939 (1976-11-01), Slavin
patent: 4232698 (1980-11-01), Hosterman et al.
patent: 4263929 (1981-04-01), Kearney
patent: 4272959 (1981-06-01), Yomane
Bulletin 304A, Robertshaw Controls Co., Oct. 1977.
Bulletin SW-2, Gordon Engineering Corp., Aug. 1978.
Bulletin FTC 1620, Endress and Hauser, Inc., Oct. 1978.
Bulletin, 4900 Series, Electro Corp., 1979.

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