Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-12-21
1994-08-30
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
385 12, H01J 516
Patent
active
053430352
ABSTRACT:
A strain sensor uses an optical fiber including a strain sensitive portion and at least one strain insensitive portion. The strain sensitive portion is mounted on the surface of a structure at a location where a strain is desired to be measured. The strain insensitive portion(s) may be fused to the strain sensitive portion to transmit light therethrough, so that the resulting pattern may be detected to determine the amount of strain by comparison with a similar fiber not subjected to strain, or with the light pattern produced when the fiber is not under strain.
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Egalon Claudio O.
Rogowski Robert S.
Chasteen Kimberly A.
Helfrich George F.
Lee John R.
Lupuloff Harry
Nelms David C.
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