Machinery for improving performance irregularities arising from vibrations
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United States of America Patent
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May 16, 2006
Grant Date -
Dec 30, 2004
app pub date -
May 7, 2004
filing date -
May 13, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A machinery is disclosed that comprises a movable body that moves linearly with respect to a main body and an active damper for controlling an inherent vibration of the movable body occurred in a direction of movement of the movable body, the active damper comprising a sensor, provided with the movable body, for detecting the inherent vibration currently occurred in the direction of movement of the movable body, among one or a plurality of the inherent vibrations of the movable body; an actuator, provided with the movable body, for generating a vibration in the direction of movement of the movable body; and a controller for allowing the actuator to generate the vibration having a negative phase relationship with respect to the inherent vibration detected by the sensor.
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