Abstract
The mechanical reliability of sensing glass fiber is one of the important problems in the practical use of fiber-optic sensors. To ensure long-term reliability on a mass-production level, a method of proof-testing is applied to a sensing glass fiber that will be subjected to mechanical deformation in its service situation. We propose to employ a higher strain level (screening level) in the proof-testing with a fiber-recoating technique that can suppress excessive damage during the testing. We consider a standard lifetime of 15 years of automotive applications and ensure a practical level of failure probability by a model calculation by using the strength data of a prototype fiber with the method of fracture-mechanics theory.
© 1999 Optical Society of America
Full Article | PDF ArticleMore Like This
M. Komachiya, H. Sonobe, S. Oho, M. Kurita, T. Nakazawa, and T. Sasayama
Appl. Opt. 35(7) 1143-1150 (1996)
Wanku Lee, Jongseo Lee, Craig Henderson, Henry F. Taylor, Ray James, Chung E. Lee, Victor Swenson, Robert A. Atkins, and William G. Gemeiner
Appl. Opt. 38(7) 1110-1114 (1999)
K. Saito, A. J. Ikushima, T. Kotani, and T. Miura
Opt. Lett. 24(23) 1678-1680 (1999)