Electrical generator or motor structure – Non-dynamoelectric – Charge accumulating
Patent
1995-05-12
1997-02-18
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Charge accumulating
310311, 310317, 310366, H01L 4108
Patent
active
056043929
ABSTRACT:
A crystal resonator in an electrodeless configuration is electrically levitated by a resonant circuit. A quartz plate (or other piezoelectric substrate) is levitated by a resonant circuit which includes an inductor that is external to a housing and a parallel plate capacitor that is inside the housing. The parallel plate capacitor consists of three plates, two of which are mounted edge to edge on a nonconductive housing with a small space between them and the third of which is a conducting surface on the quartz plate being levitated. This is an open circuit configuration which requires no feedback sensor circuitry. The resonator, after being levitated, is then electrically addressed in any number of electrodeless configurations.
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Besson, "A New Piezoelectric Resonator Design", Proceedings of the 30th Aal Frequency Control Symposium, pp. 78-83, 1976.
U.S. Patent Application Serial No. 08/397,698, filed Mar. 1, 1995, entitled "High Sensitivity Temperature Sensor and Sensor Array" by John R. Vig.
Anderson William H.
Dougherty Thomas M.
The United States of America as represented by the Secretary of
Zelenka Michael
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