| 摘要 |
A gyroscope for sensing rate on at least two axes includes a substantially planar vibratory resonator (2) having a ring or hoop like shape, carrier mode drive means (4) for causing the resonator (2) to vibrate in a Cosn 1 # in-plane carrier mode where n 1 has an integer value of 2 or more. The gyroscope also includes support means (3) for flexibly supporting the resonator (2), carrier mode pick off means (5) for sensing in-plane movement of the resonator, X axis response mode pick off means (8) for sensing out-of-plane Cosn# response mode movement of the resonator in response to rotation of the gyroscope around the X axis, where n has a value of n 1 +1 or n 1 -1, and Y axis response mode pick off means (10) for sensing out-of-plane Sinn# response mode movement of the resonator (2) in response to rotation of the gyroscope about the Y axis where n has a value n 1 +1 or n 1 -1, identical to that for the X axis response mode.
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