Vibrational gyroscope
First Claim
1. A vibrational gyroscope comprising a flat flexible plate, a flexible annular shell extending from said plate, driving means for causing said plate to vibrate in such a way as to excite radial vibration in said annular shell and sensing means for sensing changes in the vibration of said plate in response to changes in said radial vibrations induced by rotation about the shell axis.
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Abstract
A vibrational gyroscope is provided with a vibrating member in the form of a flexible annular shell extending from a flat flexible plate. In use, the flat plate is vibrated and excites radial vibrations in the lip of the annular shell. When the gyroscope is rotated about the shell axis, the nodes of these radial vibrations shift around the circumference of the lip, due to the action of Coriolis forces. The radial nodes of the vibrations in the plate shift similarly and their movement is detected by sensing means on the plate, giving an indication of the rotation rate.
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Citations
20 Claims
- 1. A vibrational gyroscope comprising a flat flexible plate, a flexible annular shell extending from said plate, driving means for causing said plate to vibrate in such a way as to excite radial vibration in said annular shell and sensing means for sensing changes in the vibration of said plate in response to changes in said radial vibrations induced by rotation about the shell axis.
Specification