Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1984-11-30
1987-11-03
Terapane, John F.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310366, 310800, 367164, 367165, 381174, 29 2535, H01L 4102, H01L 4122, H04R 1700, H01G 700
Patent
active
047045566
ABSTRACT:
A transducer for effecting conversion between stress wave energy and electrical energy comprising a plurality of individual electrically conductive electrode elements presenting an array of coplanar electrode element faces, an overlying sheet of dielectric material carrying an electrically conductive film or coating on its side remote from the individual electrode elements and which is common to the individual electrode elements, means for supporting the sheet peripherally to lie freely on, but in tension over, the coplanar faces of the individual electrode elements, adjacent areas of which are spaced from each other by gaps which are sufficiently large compared with the thickness of the sheet to avoid or minimize shear stress transmission between adjacent areas of the sheet overlying respective adjacent individual electrode elements.
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Jorgensen Eric
Terapane John F.
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