Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1992-12-21
1994-06-21
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310344, 310346, 310348, 310353, H01L 4108
Patent
active
053230833
ABSTRACT:
A crystal resonator having reduced acceleration sensitivity in which the resonator blank having one or more electrodes thereon has stiffening cover plates mounted to its top and bottom faces and spaced from the resonator blank by sidewalls.
REFERENCES:
patent: 3069572 (1962-12-01), Dick et al.
patent: 3339091 (1967-08-01), Hammond et al.
patent: 4221986 (1980-09-01), Besson
"Chemically Milled VHF and UHF AT-Cut Resonators," by J. R. Hunt and R. C. Smythe, Piezo Technology, Inc.
"Further Advances on B.V.A. Quartz Resonators," by R. J. Bession and U. R. Peier, Freq. Control Symposium, USAERADCOM, May 1980.
"The Acceleration Sensitivity of Quartz, Crystal Oscillators: A Review," by Raymond L. Filler, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 35, No. 3, May 1988.
"On the Influence of Fabrication Imperfection On the Normal Acceleration Sensitivity of Contoured Quartz Resonators With Rectangular Supports," by Y. S. Zhou and H. F. Tiersten Forty-Fourth Annual Symposium on Frequency Control 1990.
"An Analysis of the In-Plain Acceleration Sensitivity of Contoured Quartz Resonators With Rectangular Supports," by H. F. Tiersten and Y. S. Zhou Forty-Fourth Annual Symposium on Frequency Control 1990.
Smythe Robert C.
Tiersten Harry F.
Budd Mark O.
Piezo Technology Inc.
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