High speed measurements using fiber-optic Bragg gratings

被引：337

作者：

Benterou, Jerry ^{[1
]}

May, Chadd ^{[1
]}

Udd, Eric ^{[2
]}

Mihailov, Stephen J. ^{[3
]}

Lu, Ping ^{[3
]}

机构：

[1] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA

[2] Columbia Gorge Res LLC, Oregon, CO 97024 USA

[3] Commun Res Ctr Canada, Ottawa K2H8S2, ON, Canada

来源：

FIBER OPTIC SENSORS AND APPLICATIONS VIII | 2011年 / 8028卷

关键词：

Fiber gratings; structures; failure; high-speed; detonation velocity; Bragg effect; CFBG; STRAIN SENSORS; SYSTEMS;

D O I：

10.1117/12.884703

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页数：12

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