Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1997-01-30
1998-09-22
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310329, 310338, 7351401, H01L 4108
Patent
active
058119108
ABSTRACT:
A mechanical shock sensor including a diaphragm suspended about its edge to an elevated pedestal and a pattern of piezoelectric material attached to the diaphragm surface. A proof mass is attached beneath the diaphragm surface and centered along a vertical axis passing through the diaphragm and the concentric piezoelectric materials. Electrical conductors are attached to the first and second concentric electrically conductive layers on piezoelectric material and are connected to a circuit capable of responding to the piezoelectric signals developed thereby.
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Cameron Graham P.
Haviland Jeffrey S.
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