| 摘要 |
An oscillatory angular speed detecting apparatus comprises a pillar-shaped oscillator body 1 and drive and readout piezoelectric transducers 2a, 2b attached to first and second side surfaces of the oscillator body, the first side surface being perpendicular to the second side surface. Oscillation of the oscillator body is transduced into a readout signal by the readout piezoelectric transducer 2b, and a phase detecting device 15 detects variations of phases of drive and readout signals, and an amplitude detecting device 18 detects variations of amplitudes of the readout signals. The angular speed is derived from these phases and amplitude. A feedback transducer 2c is used for generating the drive signal by circuits 10, 11, 12 and to provide a phase reference for the phase detector 15. The readout signal from the transducer 2b is amplified by an amplifier 16 and is passed to both the phase detector 15 and the amplitude detector 18. DC levels generated at converters 19, 20 are digitized and processed to provide a display signal. <IMAGE>
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