| 摘要 |
PROBLEM TO BE SOLVED: To obtain a vibrational gyro which provides desired response performance by adjusting the phase delay in the vibrational gyro or detector circuit. SOLUTION: The circuit 10 for using a vibrational gyro 50 having e.g. piezoelectric elements 54a-54c formed on the side faces of a regular triangular pyramid-like vibrator 52. The detecting piezoelectric elements 54a, 54b are connected to an oscillator circuit 12 to obtain a drive signal which is then applied to the piezoelectric element 54c and provides output signals which are then inputted to a differential circuit 14 of the detector circuit. A synchronous detector circuit 16 detects the output signal of the differential circuit 14, a phase shifter circuit 18 adjusts the phase to provide an output signal which is then amplified by a d-c amplifier circuit 20. The phase shifter circuit 18 uses an integrator circuit, differentiator circuit or the like. |
