2 June 2011 High speed measurements using fiber-optic Bragg gratings
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Abstract
Fiber grating sensors may be used to monitor high-speed events that include catastrophic failure of structures, ultrasonic testing and detonations. This paper provides insights into the utility of fiber grating sensors to measure structural changes under extreme conditions. An emphasis is placed on situations where there is a structural discontinuity. Embedded chirped fiber Bragg grating (CFBG) sensors can track the very high-speed progress of detonation waves (6-9 km/sec) inside energetic materials. This paper discusses diagnostic instrumentation and analysis techniques used to measure these high-speed events.
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Jerry Benterou, Chadd May, Eric Udd, Stephen J. Mihailov, Ping Lu, "High speed measurements using fiber-optic Bragg gratings", Proc. SPIE 8028, Fiber Optic Sensors and Applications VIII, 802808 (2 June 2011); doi: 10.1117/12.884703; https://doi.org/10.1117/12.884703
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