Rotational geophone

Details Rotational geophone Rotational geophone

1981-11-23

1984-05-01

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 31, 367912, 181104, G01V 118

Patent

active

044465416

ABSTRACT:
A method and apparatus for obtaining seismic records representing shear waves detected preferentially in a given direction of propagation. The apparatus comprises a velocity transducer deployed to measure the instantaneous particle velocity perpendicular to the direction of propagation of the wave and a rotational transducer measuring the instantaneous rate of particle rotation.

REFERENCES:
patent: 2740945 (1956-04-01), Howes
patent: 2927300 (1960-03-01), Smith
patent: 3208549 (1965-09-01), Alexander et al.
patent: 3299397 (1967-01-01), Pavey et al.
patent: 3378096 (1968-04-01), Cherry
patent: 4134097 (1979-01-01), Cowles
patent: 4345473 (1982-08-01), Berin

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