Linear actuator control system for platform stabilization
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United States of America Patent
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Dec 8, 1992
Grant Date -
N/A
app pub date -
Aug 20, 1991
filing date -
Aug 20, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An inertial linear actuator for stabilizing a platform against vibration includes a movable coil having windings which may be energized, supported on an actuator guide for movement. The actuator guide is fixed to the platform and a current is supplied to the movable coil to generate a force for damping sensed vibrations on the platform surface. Permanent magnets parallel to the actuator guide, and a current in the movable coil results in a force being introduced between the movable coil and the stationary actuator guides. A control system on the platform supplies a feedback signal from an accelerometer coupled to the platform to drive electronics. The drive electronics produce a current having the magnitude and direction for creating the actuator force for damping the sensed disturbance.
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