| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for adjusting characteristics capable of realizing desired characteristics with ease in a composite material vibrator in which downsizing and cost reduction are achieved. SOLUTION: The composite material vibrator 1 is configured that supporting members 5, 6 are coupled to a piezoelectric resonator 2 acting as a vibrating member through reflection layers 3, 4, an acoustic impedance value Z<SB>2</SB>of the reflection layers 3, 4 is set to be smaller than the acoustic impedance values Z<SB>1</SB>, Z<SB>3</SB>of the piezoelectric resonator 2, and the supporting members 5, 6; and that the vibration from the piezoelectric resonator 2 acting as the vibration member is reflected at interfaces between the reflection layers 3, 4 and the supporting members 5, 6. In the method for adjusting the characteristics of the composite material vibrator 1, the characteristics of the composite material vibrator 1 is adjusted by changing the materials of the reflection layers 3, 4. COPYRIGHT: (C)2004,JPO
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