Vibrating inertial rate sensor utilizing skewed drive or sense elements
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United States of America Patent
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May 5, 2009
Grant Date -
Oct 18, 2007
app pub date -
Dec 18, 2006
filing date -
Apr 18, 2006
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Abstract
A vibrating inertial rate sensor has sense elements that operate on axes that are rotationally skewed from a node reference axis, enabling both a rate sense and a drive sense determination. Alternatively, the skew may be applied to rotationally offset the drive elements from antinode reference axes to affect active torquing of the gyroscope. The skewed sensing scheme may be applied to vibratory systems having one or more node axes. The skewed drive scheme may be applied to vibratory systems having two or more node axes to affect active torquing.
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