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Title: Fiber-optic strain gauge with attached ends and unattached microbend section

Abstract

A strain gauge is made of an optical fiber into which quasi-sinusoidal microbends have been permanently introduced. The permanent microbends cause a reduction in the fiber's optical transmission, but, when the gauge is attached to a substrate that is subsequently strained, the amplitude of the deformations will diminish and the optical transmission through the fiber will increase. An apparatus and process for manufacturing these microbends into the optical fiber through a heat-set process is employed; this apparatus and process includes a testing and calibration system. 5 figs.

Inventors:
Issue Date:
OSTI Identifier:
7067051
Patent Number(s):
5132529 A
Application Number:
PPN: US 7-571358
Assignee:
Dept. of Energy, Washington, DC (United States) SNL; EDB-94-090527
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Patent File Date: 23 Aug 1990
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; OPTICAL FIBERS; DEFORMATION; STRAIN GAGES; DESIGN; EQUIPMENT; LIGHT TRANSMISSION; MEASURING METHODS; FIBERS; MEASURING INSTRUMENTS; 440800* - Miscellaneous Instrumentation- (1990-)

Citation Formats

Weiss, J.D. Fiber-optic strain gauge with attached ends and unattached microbend section. United States: N. p., 1992. Web.
Weiss, J.D. Fiber-optic strain gauge with attached ends and unattached microbend section. United States.
Weiss, J.D. Tue . "Fiber-optic strain gauge with attached ends and unattached microbend section". United States.
@article{osti_7067051,
title = {Fiber-optic strain gauge with attached ends and unattached microbend section},
author = {Weiss, J.D.},
abstractNote = {A strain gauge is made of an optical fiber into which quasi-sinusoidal microbends have been permanently introduced. The permanent microbends cause a reduction in the fiber's optical transmission, but, when the gauge is attached to a substrate that is subsequently strained, the amplitude of the deformations will diminish and the optical transmission through the fiber will increase. An apparatus and process for manufacturing these microbends into the optical fiber through a heat-set process is employed; this apparatus and process includes a testing and calibration system. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {7}
}