Acoustic emission detection using a fiber laser array

被引：0

作者：

Zhang, Wentao ^{[1
]}

Huang, Wenzhu ^{[1
,2
]}

Ma, Huaixiang ^{[2
]}

Li, Fang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Optoelect Syst Lab, Beijing 100083, Peoples R China

[2] Shijiazhuang Tiedao Univ, Sch Mech Engn, Shijiazhuang 050043, Peoples R China

来源：

22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷

基金：

美国国家科学基金会;

关键词：

acoustic emission; fiber laser; array; strain; SENSORS;

D O I：

10.1117/12.974908

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

In this paper we repot a novel acoustic emission detection method using a fiber laser array. The ultra-narrow line width of the DFB fiber laser will result in a low equivalent noise level when using a fiber optic interferometric demodulation. A minimum detectable strain of 10(-12) is achieved in the experiment. Three fiber lasers are used in the array and the acoustic emission is detected. The result is compared with that of a piezoelectric acoustic emission sensor.

引用

页数：4

共 7 条

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