专利名称：Determining the polarity of movement of an
actuator mass in a seismic vibrator
发明人：Martin Laycock申请号：US12693686申请日：20100126公开号：US08079440B2公开日：20111220
专利附图：
摘要：A technique or mechanism for use with a vibrator to be employed forsubterranean surveying includes receiving, from a sensor, a unipolar indication ofmovement 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 areference signal provided to cause movement of the actuator mass.
申请人：Martin Laycock
地址：Asker NO
国籍：NO
代理人：Dan C. Hu,Kevin B. McGoff,Kevin P. McEnancy
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