Holding structure for a piezoelectric vibrator

Details Holding structure for a piezoelectric vibrator Holding structure for a piezoelectric vibrator

1994-05-26

1996-05-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310354, H01L 4108

Patent

active

055214576

ABSTRACT:
Protrusions made of an electrically conductive material such as a metal or ceramic are formed around a node point or a node line of vibrations of a piezoelectric plate on two principal planes thereof by a spraying process. The piezoelectric plate is held at the protrusions with leaf springs on the two principal planes. Thus, protrusions of a small surface area are formed without deteriorating the piezoelectric plate. The piezoelectric plate can be held stably without deteriorating the vibration characteristics. An alternating voltage is applied to electrodes of the piezoelectric plate through the electrically conductive protrusions. Because a spraying process is used, the protrusions can be thickly and precisely formed in a small area and held surely and reliably, with a good mechanical strength of the protrusions.

REFERENCES:
patent: 2133643 (1938-10-01), Pierce
patent: 3906249 (1975-09-01), Gibert
patent: 4025806 (1977-05-01), Weber
patent: 4183126 (1980-01-01), Ikeno et al.
patent: 4418299 (1983-11-01), Momosaki
patent: 5250870 (1993-10-01), Fenlon

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