Suppression of air-coupled noise produced by seismic vibrators

Details Suppression of air-coupled noise produced by seismic vibrators Suppression of air-coupled noise produced by seismic vibrators

G - Physics

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G01V 1/36 (2006.01) G01V 1/04 (2006.01) G10K 11/178 (2006.01)

Patent

CA 2010900

ABSTRACT Air wave noise caused by a vibrating baseplate on a seismic vibrator is reduced or eliminated through active cancellation of sound. In active cancellation, the detection of acceleration of the baseplate is used to form a counterpart wave which is equal in amplitude but opposite in phase; a speaker produces an opposite air wave to cancel the baseplate air wave.

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