OSCILLATORY GYRO AND TEMPERATURE DRIFT ADJUSTING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To obtain an oscillatory gyro with a smaller temperature drift inexpensively with a simple circuitry. SOLUTION: The oscillatory gyro 10 contains an oscillator 12 and an oscillation circuit 30 for exciting the oscillator 12. A terminal for detection of the oscillator 12 is connected to the ground through load resistances 26 and 28 while being connected to a differential circuit 32, and an output signal of the differential circuit 32 is detected with a synchronous detection circuit 34. An output signal of the synchronous detection circuit 34 is smoothed by a smoothing circuit 36 and further amplified with an amplification circuit 38. The resistance values of the load resistance 26 and 28 are adjusted according to the degree of the inclination of the temperature drift of the oscillatory gyro 10 to minimize the degree of the inclination of the temperature drift.