Interferometric fiber optic gyroscope with off-frequency modulation signals
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United States of America Patent
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Oct 19, 2010
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app pub date -
Jun 27, 2008
filing date -
Aug 8, 2007
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Abstract
Interference in a rotation rate detector signal of an interferometric fiber-optic gyroscope from a bias phase modulator signal may be reduced or substantially avoided by transmitting one or more off-frequency signals having a frequency other than the eigenfrequency of the gyroscope towards a bias phase modulator, generating the bias phase modulator signal having a frequency substantially equal to the eigenfrequency of the gyroscope, and driving the bias phase modulator with the bias phase modulator signal.
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