Determining the polarity of movement of an actuator mass in...

Details Determining the polarity of movement of an actuator mass in... Determining the polarity of movement of an actuator mass in...

2010-01-26

2011-12-20

Martin, Edgardo San (Department: 2832)

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

C181S107000, C181S113000

Reexamination Certificate

active

08079440

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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