Geophone

Details Geophone Geophone

1991-05-03

1992-06-02

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

29594, G01V 116

Patent

active

051193450

ABSTRACT:
A geophone is disclosed that has a cylindrical housing closed at one end by a bottom and at the other end by a top. A magnet assembly and a coil-mass are located in the housing. Springs support the coil-mass for axial movement relative to the magnet assembly along the longitudinal axis of the housing. A pair of coil terminals are mounted in the upper end of the coil-mass adjacent the top of the housing. A pair of eyelets extend through the top of the housing and outside geophone terminals are attached to and extend through the eyelets into the housing. A pair of pigtails connect the geophone terminals to the coil terminals.

REFERENCES:
patent: 3738445 (1973-06-01), Wilson et al.
patent: 3913063 (1975-10-01), Sears
patent: 3953829 (1976-04-01), Boyle
patent: 4144520 (1979-03-01), McNeel
patent: 4152692 (1979-05-01), McNeel
patent: 4159464 (1979-06-01), Hall, Jr.
patent: 4285054 (1981-08-01), Woo et al.

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