Optical seismic detector

Details Optical seismic detector Optical seismic detector

1986-09-23

1988-12-20

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367140, 367150, 367185, 73653, 73655, 350 9618, 250230, 250231R, H04R 102, H04R 1100, G01H 100

Patent

active

047929316

ABSTRACT:
A detector for detecting the acceleration, the velocity or the displacement of a point is described. The detector includes a light source, at least two photoelectric elements spaced apart from each other over a predetermined distance and a focusing optical system disposed between the light source and the photoelectric elements; the combination being particularly suited for use as an optical seismic detector for detecting and mapping an underground stratum structure.

REFERENCES:
patent: 3480908 (1969-11-01), Codina
patent: 3648055 (1972-03-01), De Lang
patent: 3789674 (1974-02-01), Anderson et al.
patent: 4028659 (1977-06-01), Rihn
patent: 4123166 (1978-10-01), Botcherby et al.
patent: 4152940 (1979-05-01), Saito
patent: 4185503 (1980-01-01), Saito
patent: 4285570 (1981-08-01), Minemura et al.
patent: 4358858 (1982-11-01), Tamura et al.
patent: 4376390 (1983-03-01), Rines
patent: 4378496 (1983-03-01), Brogardh et al.

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