Improvements to High-Speed Monitoring of Events in Extreme Environments Using Fiber-optic Bragg Sensors [open pdf - 7MB]
The program objectives focused on: "High speed system for pressure, temperature, velocity and position during burn, deflagration and detonation; Incorporate system into appropriate test bed; Demonstrate effectiveness of approach, [and] evaluate[d] results." There are two sensor types: "(1) A chirped fiber grating with 'masked' regions to allow position measurement and investigate pressure/temperature shifts 135mm in length[.] (2) Uniform 6mm long fiber gratings written into side-hole optical fiber (second approach to objective of first time high speed pressure measurement, 1000 C fiber gratings)[.]"
Lawrence Livermore National Laboratory, LLNL-CONF-531333
OSTI SciTech Connect: http://www.osti.gov/scitech/biblio/1093415
SPIE Defense, Security and Sensing Conference Baltimore, MD, United States, April 23, 2012 through April 27, 2012.