Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1995-05-01
1997-02-04
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
73606, 73646, 73655, G01N 2904
Patent
active
056001339
ABSTRACT:
An acousto-optic damage detector and locator uses acoustic energy propagated through a structure to modulate light transmitted through an optical fiber whereby the character of acoustic signals detected by the fiber varies according to the physical condition of the portion of the structure through which the pulses propagate to determine the existence, location and extent of faults within the structure.
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Lee John R.
Lewis Leonard L.
Romanchik Richard A.
Simmonds Precision Products Inc.
Westin Edward P.
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