Determining the polarity of movement of an actuator mass in a seismic vibrator
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United States of America Patent
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Dec 20, 2011
Grant Date -
Jul 28, 2011
app pub date -
Jan 26, 2010
filing date -
Jan 26, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A technique or mechanism for use with a vibrator to be employed for subterranean surveying includes receiving, from a sensor, a unipolar indication of movement of an actuator mass of the vibrator. According to the indication from the sensor, a correlation is determined between the movement of the actuator mass and a reference signal provided to cause movement of the actuator mass.
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