Resonator

Details Resonator Resonator

2006-04-04

2009-06-02

Leung, Quyen P (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S358000, C310S365000

Reexamination Certificate

active

07541716

ABSTRACT:
There is provided a resonator having a piezoelectric ceramic resonator which has excellent free-fall resistance. The resonator comprises a piezoelectric ceramic resonator2with a vibrating electrode formed, and a substrate3which supports the piezoelectric ceramic resonator2, wherein the piezoelectric ceramic resonator2satisfies the condition of U≧0.88×H+20.28, wherein U=maximum elastic energy (kJ/m3) per unit volume, and H=drop height (m) (H>1). The present invention can be applied to a resonator1, wherein the substrate3has terminal electrodes31, 32, and the piezoelectric ceramic resonator2is in electrical continuity with the vibrating electrode and is supported on the substrate3at both ends via a conductive stator4.

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European Search Report for corresponding European application No. 06007382.2-2215 lists the references above.

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