Validation of a single-mode polymer optical fiber sensor and interrogator for large strain measurements

被引：3

作者：

Abdi, Omid ^{[1
]}

Peters, Kara ^{[2
]}

Kowalsky, Mervyn ^{[1
]}

Hassan, Tasnim ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Civil Construct & Environm Engn, Raleigh, NC 27695 USA

[2] N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2011年 / 22卷 / 07期

基金：

美国国家科学基金会;

关键词：

strain sensor; polymer optical fiber; large deformation; BRAGG GRATINGS; BEHAVIOR;

D O I：

10.1088/0957-0233/22/7/075207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A single-mode polymer optical fiber (POF) in a Mach-Zehnder interferometer configuration is validated for the measurement of tensile nominal elongation of the POF up to 10%. The single-mode POF sensors were unmounted and surface mounted on aluminum tensile coupons for strain measurements. The measured strains from the POF sensors were compared to extensometer measurements for validation. The phase response of the interferometer was measured with a 3 x 3 coupler interrogator. The coupler arrangement was configured to permit the extraction of potential intensity changes in the sensor arm. The phase-shift-strain response of the POF sensors was repeatable for the loading and unloading measurements. The nonlinearity of the phase-shift-strain response was greater than that measured during pure tensile loading of the POF, presumably due to the behavior of the adhesive between the optical fiber and the aluminum coupons.

引用

页数：10

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