Gyro sensor system

A gyro sensor system comprising at least one gyro sensor unit comprising:

• a movable body;
• a spring mechanism configured to vibrate the movable body;
• a detector capable of detecting an amplitude of vibration of the movable body wherein the vibration is due to a Coriolis force acting on the movable body;
• an adjuster configured to adjust a first resonance frequency of vibration of the movable body in free vibration and a second resonance frequency of vibration of the movable body wherein the vibration is due to the Coriolis force acting on the movable body, so that the first resonance frequency and the second resonance frequency coincide with each other, based on the amplitude of the vibration due to the Coriolis force detected by the detector;
• and
• a rotation angle acquisition unit configured to acquire a rotation angle of the movable body, based on the amplitude of the vibration due to the Coriolis force detected by the detector in a state in which the first resonance frequency and the second resonance frequency are adjusted by the adjuster so that the first resonance frequency and the second resonance frequency coincide with each other,
• wherein the adjuster comprises:
• an adjustment signal generation circuit configured to generate an adjustment signal to coincide the first resonance frequency and the second resonance frequency with each other, based on the amplitude of the vibration due to the Coriolis force detected by the detector;
• and
• an adjustment mechanism configured to receive the adjustment signal generated from the adjustment signal generation circuit to perform the adjustment of the movable body.