skip to main content

Title: High Speed Measurements using Fiber-optic Bragg Grating Sensors

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.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
1022149
Report Number(s):
LLNL-PROC-477371
TRN: US201117%%634
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 2011 SPIE Defense, Security, & Sensing Conference, Orlando, FL, United States, Apr 25 - Apr 29, 2011
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUMM MECHANICS, GENERAL PHYSICS; DETONATION WAVES; EXPLOSIONS; FIBERS; MONITORS; SECURITY; SENSORS; ULTRASONIC TESTING; VELOCITY