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Optical fiber systems have been developed during the past twenty-five years for primary applications in
the high speed digital communication of information. Using much of the same rapidly-developing
technology optical fiber sensor systems have been developed during the past fifteen years for the
measurement of a wide range of physical observables and applications in aerospace and hydrospace,
civil structures and biomedical instrumentation systems. The major advantage of optical fiber sensor
methods over conventional sensor systems is the all-dielectric nature of the fiber and the intrinsic
avoidance of electromagnetic interference and ground loops that plague wire and metal-based sensing
networks. For physical property measurements in smart materials where actuator elements and arrays
are driven by high voltage electrical signals, such immunity is especially important.
Another major advantage is the operation of fiber sensors above the temperatures at which most
conventional sensor instrumentation will not operate. Such operation allows the use of properly
designed fiber sensors in situ for the analysis of the fabrication conditions of smart materials, as well as
their performance in high temperature environments. Sensor elements incorporated into the material
during fabrication may in some cases be used for material evaluation post processing.
This paper briefly suggests the use of such optical fiber sensor elements during the fabrication, inservice
lifetimes and damage and degradation phases of smart material and structural systems.
Richard O. Claus andKent A. Murphy
"Optical fiber sensors for characterization of materials and structures", Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182021
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Richard O. Claus, Kent A. Murphy, "Optical fiber sensors for characterization of materials and structures," Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182021