Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1998-10-16
2000-11-07
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25022718, 387 37, G01B 902
Patent
active
061440264
ABSTRACT:
A fiber grating corrosion sensor system which includes fiber grating corrosion and/or chemical sensors formed by writing one or more fiber gratings that are transverse load sensitive so that when corrosion occurs to a transverse stress applying sleeve there over, the transverse loading is relieved. The spectral signals from the fiber grating sensors change with variations in transverse strain providing a measurement of the degree of corrosion or change in chemical content.
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Haugse Eric D.
Trego Angela
Udd Eric
Allen Stephone B.
Blue Road Research
Finch George W.
The Boeing Company
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