| 摘要 |
A gyroscope for sensing rate on at least two axes includes a substantially planar vibratory resonator having a ring or hoop like shape, carrier mode drive means for causing the resonator to vibrate in a Cos n1theta in-plane carrier mode where n1 has an integer value of 2 or more. The gyroscope also includes support means for flexibly supporting the resonator, carrier mode pick off means for sensing in-plane movement of the resonator, X axis response mode pick off means for sensing out-of-plane Cos ntheta response mode movement of the resonator in response to rotation of the gyroscope around the X axis, where n has a value of n1+1 or n1-1, and Y axis response mode pick off means for sensing out-of-plane Sin ntheta response mode movement of the resonator in response to rotation of the gyroscope about the Y axis where n has a value n1+1 or n1-1, identical to that for the X axis response mode. |
