| 摘要 |
PROBLEM TO BE SOLVED: To make a size in a axis direction to be detected of an oscillation gyro smaller by employing a structure wherein the axis direction of a piezoelectric oscillator is set inclined by a specified angle against a stage reference surface of the oscillation gyro, instead of being parallel. SOLUTION: By inclining a stage 81, a piezoelectric oscillator 7 is inclined by angle θ with a axis 22 to be detected as a reference. A range 30 deg.-75 deg. is appropriate as an inclination angle. As the angle θ formed between oscillator axis and rotation axis increases, the output of an oscillation gyro becomes smaller, and when the angle θ becomes 90 deg., the output of the gyro becomes almost 0. Even if the axis of piezoelectric oscillator is fixed with a specified inclination, in a vertical direction, against a axis direction to be detected (rotation axis direction) set parallel to a reference surface of the stage of piezoelectric oscillation gyro, the output of piezoelectric oscillator gyro corresponds to the level of an applied rotation angle speed, in addition, the size of the piezoelectric oscillator gyro in the to-be-detected axis direction can be smaller. |
