Devices and systems for controlling harmonic distortion in seismic sources
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United States of America Patent
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Nov 15, 2016
Grant Date -
Oct 10, 2013
app pub date -
Apr 4, 2013
filing date -
Apr 4, 2012
priority date (Note) -
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Abstract
A seismic source signal apparatus for generating a seismic source signal may include a seismic source component for coupling a reaction mass to the earth; a controllable valve operatively connected to the seismic source component; and a controller controlling the controllable valve with a primary control signal generated by using a model of a response of the controllable valve over a selected operating range. The model is used to reduce nonlinearity in flow versus displacement response of the controllable valve.
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