| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrating gyro outputting an angular velocity detecting signal that Coriolis force is peak-held and a voltage is amplified to be digitized. SOLUTION: A level of a reference signal that an L signal from a vibrator 1 and R signal are added in an adder circuit 2, is set constantly in an AGC circuit 4 and a phase of the signal is adjusted in a phase-shift circuit 5, and then the vibrator 1 is excited. The reference signal is formed to a rectangular wave in a rectangular wave forming circuit 6, and a timing signal for a sample- hold is provided a V-T conversion circuit 8 through a microprocessor 7. A differential amplification circuit 3 sample-holds a sum of differential component of the L and R signals and Coriolis force in a sample-hold circuit 81, integrates it in an integration circuit 82, compares it with a fixed level in a comparator 83, and provides a digital signal with a duty factor corresponding to Coriolis force to the microprocessor 7 as the angular velocity detecting signal. |
