| 摘要 |
PURPOSE:To decrease the loss resistance by devising ununiform width of a frame of a supporting part. CONSTITUTION:A vibrator 1 consists of a vibration part 2 and a supporting part 3 and the supporting part 3 is fixed at both ends. Denoting the length of the vibration part 2 as L1, the width as W1 and the thickness as T and denoting the length of the supporting part 3 as L2, the width as W2, then the supporting part is brought into the bending mode toward the inner side as shown in the arrow B naturally when the vibration part 2 of the vibrator 1 is elongated as shown in the arrow A. If the vibration part 2 is shrinked conversely, the supporting part 3 is brought into the bending mode in the outward direction. In selecting the shape, W2/L2 to be converted into the bending mode of the supporting part 3 delivered from the vibration part 2, the vibration of the vibration part is made free and the leakage of vibration is reduced by increasing the mass of the part connected to the part subjected to the bending mode.
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