Geophone testing

Details Geophone testing Geophone testing

1987-03-31

1988-07-19

Noland, Tom

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73 1R, 367 13, G01D 1800

Patent

active

047577061

ABSTRACT:
A method and apparatus for testing geophones is provided which utilizes the levitate waveform produced by the geophones upon removal of a levitate current. The levitate waveform is integrated to give an integral value which is proportional to the number of properly functioning geophones in a geophone array, for example.

REFERENCES:
patent: 2729094 (1956-01-01), Piety
patent: 2917706 (1959-12-01), Thompson
patent: 3903505 (1975-09-01), Tims
patent: 4366561 (1982-12-01), Klein
patent: 4392213 (1983-07-01), King et al.
patent: 4639901 (1987-01-01), Warmack et al.

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