| 摘要 |
PURPOSE:To prevent oscillation from being leaked by supporting a tuning fork type crystal oscillator utilizing torsional oscillation at a position where the displacement of a subordinate oscillation is small by two leads. CONSTITUTION:A tuning fork type crystal oscillator 81 utilizing torsional oscillation is supported by the leads 82, 83. The displacement by the subordinate oscillation specific to the torsional oscillation is smaller at a range between points D and E which are midpoints respectively between points B, C on a prolonged line of straight lines 86, 87 at the end in the broadwise direction of tuning fork arms 84, 85 and points F, G at the end in broadwise direction of the base. Further, the leads 82, 83 are provided at the inner side from the points D, E and on one face. Thus, the leakage of the oscillation through the leads 82, 83 is prevented. Thus, the supporting process is made simple with simple structure. |
