Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1988-06-28
1990-03-27
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310338, 310339, 310357, 310332, 73774, 73775, 73800, H01L 4108
Patent
active
049123556
ABSTRACT:
A strain gage comprising a strained-layer superlattice crystal exhibiting piezoelectric properties is described. A substrate upon which such a strained-layer superlattice crystal has been deposited is attached to an element to be monitored for strain. A light source is focused on the superlattice crystal and the light reflected from, passed through, or emitted from the crystal is gathered and compared with previously obtained optical property data to determine the strain in the element.
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Noel Bruce W.
Sinha Dipen N.
Smith Darryl L.
Budd Mark O.
Gaetjens Paul D.
Moser William R.
The United States of America as represented by the United States
Wyrick Milton D.
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