| 摘要 |
A piezoelectric vibrator uses aluminum nitride as piezoelectric material and thickness sliding vibration as the primary vibration. A polarization direction of the primary vibration is along the longitudinal direction of its vibrating element. This vibrator eliminates undesired resonance, caused by a width of the vibrating element, from a vicinity of a resonance frequency of the primary vibration. Vibrating element 1 has width W and thickness H defined as follows: 2.0 ≤ W/H ≤ 4.0 or 4.3 ≤ W/H ≤ 5.7 or 6.2 ≤ W/H ≤ 7.8 or 8.2 ≤ W/H ≤ 9.8. <IMAGE>
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