3*3 coupler-based Mach-Zehnder interferometer and its application in the delamination detection in FRP composite

被引：12

作者：

Jiang, Yi ^{[1
]}

Xu, Ying ^{[2
]}

Leung, Christopher K. Y. ^{[3
]}

机构：

[1] Beijing Inst Technol, Sch Informat Sci & Technol, Dept Opto Elect, Beijing 100081, Peoples R China

[2] SheZhen Inst Bldg Res, Shen Zhen, Guangdong, Peoples R China

[3] Hong Kong Univ Sci & Technol, Dept Civil Engn, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2008年 / 19卷 / 04期

关键词：

Mach-Zehnder interferometer; 3*3 coupler; delamination; FRP composite;

D O I：

10.1177/1045389X07076669

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article focuses on the development and application of a 3*3 coupler-based Mach-Zehnder interferometer. The software for signal demodulation is developed. Based on waveforms obtained at intermediate steps, plausible errors are analyzed and found to be small. The interferometer is then applied to the delamination detection in fiber-reinforced polymer (FRP) composites. Test results indicate the feasibility of detecting both the size and location of delamination by applying quasi-impulse loadings.

引用

页码：497 / 507

页数：11

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