Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1996-02-15
1997-09-16
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
73862043, G01C 1900
Patent
active
056683189
ABSTRACT:
An angular velocity sensor for detecting angular velocity components about three axes with high response is provided. A weight body carries out a circular movement along a circular orbit within the XY-plane with the origin being as a center. The weight body is supported so that it can be moved with a predetermined degree of freedom within a sensor casing. A Coriolis force Fco exerted in the Z-axis direction to the weight body is detected when the weight body passes through the X-axis at the point Px and an angular velocity .omega.x about the X-axis is obtained based on the detected force. Further, a Coriolis force Fco exerted in the Z-axis direction to the weight body is detected when the weight body passes through the Y-axis at the point Py and an angular velocity .omega.y about the Y-axis is obtained based on the detected force. In addition, a force exerted in the X-axis direction to the weight body at the point Px is detected and an angular velocity .omega.z about the Z-axis is obtained based on the detected force by eliminating a centrifugal force.
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Moller Richard A.
Wacoh Corporation
Williams Hezron E.
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