Vibration detector incorporating two or more seismic elements

Details Vibration detector incorporating two or more seismic elements Vibration detector incorporating two or more seismic elements

1978-07-24

1980-07-15

Kreitman, Stephen A.

Measuring and testing

Vibration

Sensing apparatus

200 6145R, G01V 116

Patent

active

042122082

ABSTRACT:
A vibration responsive detector with two seismic elements mounted on a pair of parallel, electrically conductive rods, the rods being bent to cause the elements to tend to move toward each other and to be maintained in electrical connection so that a break in the connection indicates vibration.

REFERENCES:
patent: 1412002 (1922-04-01), Hendricks
patent: 2799741 (1957-07-01), Ullman
patent: 3560680 (1971-02-01), Clarke
patent: 3763484 (1973-10-01), Byers
patent: 3886339 (1975-05-01), Jubenville et al.
patent: 4020302 (1977-04-01), Hasegawa et al.
patent: 4086807 (1978-05-01), Nakada

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