Vibrator resonator and resonance component utilizing width expan

Details Vibrator resonator and resonance component utilizing width expan Vibrator resonator and resonance component utilizing width expan

1995-09-06

1996-08-20

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310321, 310348, H01L 4108

Patent

active

055481809

ABSTRACT:
Disclosed herein is a piezoelectric resonator (11) utilizing a width expansion mode provided with a piezoelectric resonance part (12) having a rectangular section in which a ratio b/a of the length of each longer side to that of each shorter side is within a range of .+-.10% about the following value:

REFERENCES:
patent: 4101795 (1978-07-01), Fukumoto et al.
patent: 4454444 (1984-06-01), Fujiwara et al.
patent: 4462092 (1984-07-01), Kawabuchi et al.
patent: 5117147 (1992-05-01), Yoshida
patent: 5118980 (1992-06-01), Takahashi
J. Ormondroyd & J. P. Hartog, "The Theory of the Dynamic Vibration Absorber" pp. 9-22, Transactions of the American Society of Mechanical Engineers, APM-50-7.
UK Search Report dated Jun. 15, 1994.

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