Electrically assisted safing of a linear actuator to provide shock tolerance
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United States of America Patent
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Sep 11, 2012
Grant Date -
Apr 7, 2011
app pub date -
Oct 1, 2009
filing date -
Oct 1, 2009
priority date (Note) -
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Abstract
Electrically assisted safing of a solenoid linear actuator to provide shock tolerance is provided for a solenoid actuator, the actuator having an armature and at least one electromagnetic inductive coil. A controller, receiving an output from a motion sensor, adjusts an electrical power input to the electromagnetic inductive coil. When the output of the motion sensor indicates onset of an environmental transient exceeding a predetermined threshold of intensity, the controller adjusts the electrical power input such that an electromagnetic field generated by the coil is sufficient to restrain the armature in a desired position during the environmental transient.
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