Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-07-25
1995-08-22
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310328, H01L 4108
Patent
active
054443245
ABSTRACT:
The invention is an apparatus for increasing the signal amplitude of a piezoelectric acoustic transducer. A piezoelectric actuator is affixed to an arched spring which changes arched height in response to change in length of the actuator. The spring drives a rigid surface which can be directly coupled to a material which is to be acoustically energized. In a particular embodiment of the invention, the rigid surface is coupled to an hydraulic transmission. The output of the transmission is coupled to the material which is to be acoustically energized.
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Priest John F.
Schmidt Mathew G.
Dougherty Thomas M.
Fagin Richard A.
Western Atlas International Inc.
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