Fiber optic gyroscope with deadband error reduction
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United States of America Patent
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Dec 7, 1999
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N/A
app pub date -
Aug 4, 1997
filing date -
Aug 4, 1997
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Abstract
A deadband error reducer for a fiber optic gyroscope, which is an offset modulation signal that averages the deadband producing error over the range of the feedback modulation signal provided to the phase modulator. Although the offset modulation signal may be introduced at any of several points in the feedback loop, the offset modulation must approximate a critical amplitude at the phase modulator. If the offset modulation is a signal having segments that are linear with time, the critical amplitude of this signal will be 2.pi..
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