Electricity: motive power systems – Linear-movement motors
Patent
1991-08-20
1992-12-08
Stephan, Steven L.
Electricity: motive power systems
Linear-movement motors
310 13, 310 51, 384118, H02K 524, H02K 3318
Patent
active
051701049
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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patent: 4897582 (1990-01-01), Otten et al.
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patent: 5016238 (1991-05-01), Shtipelman et al.
Applied Technology Corporation
Rebsch D. S.
Stephan Steven L.
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