Seismic transducer for marshy terrains

Details Seismic transducer for marshy terrains Seismic transducer for marshy terrains

1977-07-18

1978-11-14

Blum, Theodore M.

Communications: electrical

Selective

Interrogation response

340 10, G01V 100, H04B 1300, H04R 1500

Patent

active

041258231

ABSTRACT:
The seismic transducer comprises a hollow, elongated casing having a bore defining a chamber. An opening extends through the wall of the casing into the chamber. A hydrophone is removably disposed inside the chamber. The hydrophone comprises an elastomer body in a portion of which is embedded a rigid cage marginally supporting a pressure detector assembly. Means are coupled to the casing for exerting a static pressure on the elastomer body. The cage has a geometric configuration adapted to substantially shield the detector from the static pressure which causes the end portions of the elastomer body to expand outwardly, whereby each end portion forms a fluid-tight seal against the wall of the chamber.

REFERENCES:
patent: 2925582 (1960-02-01), Mattei et al.
patent: 3090939 (1963-05-01), Massa
patent: 3255431 (1966-06-01), Howatt
patent: 3586889 (1971-06-01), Kolter
patent: 3932834 (1976-01-01), Sutherland

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