Communications – electrical: acoustic wave systems and devices – Signal transducers – Receivers
Patent
1982-02-08
1985-03-12
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Signal transducers
Receivers
367187, 73652, G01V 116
Patent
active
045049327
ABSTRACT:
A geophone having a non-conductive coilform thereby avoiding the disadvantages of conductive coilform damping and allowing closer control of both sensitivity and damping solely through shunt loading of the sensing coil. The coilform is a molded plastic coilform of a high strength lightweight glass filled resin. The coilform is a dimensionally stable and temperature stable thermoplastic. Preferably, the coilform is of polyphenylene sulfide.
REFERENCES:
patent: 3913063 (1975-10-01), Sears
patent: 4300220 (1981-11-01), Goff et al.
The American Heritage Dictionary, 1982, p. 1052.
Lobo Ian
Metrix Instrument Co.
Moskowitz Nelson
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