High Speed Measurements using Fiber-optic Bragg Grating Sensors

Conference · Sat Mar 26 00:00:00 EDT 2011

OSTI ID:1022149

Benterou, J J; May, C A; Udd, E; Mihailov, S J; Lu, P

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.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 1022149
• Report Number(s): LLNL-PROC-477371; TRN: US201117%%634
• Resource Relation: Conference: Presented at: 2011 SPIE Defense, Security, & Sensing Conference, Orlando, FL, United States, Apr 25 - Apr 29, 2011
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
71 CLASSICAL AND QUANTUMM MECHANICS
GENERAL PHYSICS
DETONATION WAVES
EXPLOSIONS
FIBERS
MONITORS
SECURITY
SENSORS
ULTRASONIC TESTING
VELOCITY