| 摘要 |
PURPOSE:To obtain a gyro which is easily supported and fixed and has good stability by making a vibrational body structure symmetrical in every direction of a discoid dumbbell and performing driving and detection. CONSTITUTION:Vibrators 11A and 11B are discoid and a connecting rod 21 as a connecting member connects between those central axes. Then, this connecting rod 21 is supported on its center by a collar 31 for fitting as a supporting member. Further, piezoelectric elements 41a-41c are provided to the vibrators 11A and 11B as a driving means. Then, taking the vibrator 11B as an example like figure (b), the doughnut-plate-shaped elements 41a and 41c are stuck to both surfaces of the vibrator 11B and the element 41b for driving and feedback is stuck to the central part of the element 41a. The connection of the vibrator 11B of one side alone is shown in figure (b) but actually, a detected signal from the vibrator 11A of the other side is added to improve sensitivity. Then, a piezoelectric element 51 is fitted to both sides of the collar 31 for fitting as a detection means.
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