Acoustic emission detection using intensity-modulated DFB fiber laser sensor

被引：1
|
作者：
杨郯 [1 ]
宋颖 [1 ]
张文涛 [2 ]
李芳 [2 ]
机构：
[1] School of Traffic and Transportation, Shijiazhuang Tiedao University
[2] Optoelectronic System Lab, Institute of Semiconductors, Chinese Academy of Sciences
来源：
Chinese Optics Letters | 2016年 / 14卷 / 12期
关键词：
DFB; FL; Acoustic emission detection using intensity-modulated DFB fiber laser sensor;
D O I：
暂无
中图分类号：
TP212 [发送器（变换器）、传感器];
学科分类号：
080202 ;
摘要：
The bonded distributed feedback（DFB） fiber laser（FL） acoustic emission sensor and the intensity response of the DFB-FL to external acoustic emissions are investigated. The dynamic sensitivity of the DFB-FL is calibrated by a referenced piezoelectric receiver. In the DFB-FL we used here, the minimum detectable signal is2 × 10;m∕s at 5 kHz. Using wavelet packet technology, the collected signals are analyzed, which confirms that an intensity-modulated DFB-FL sensor can be used to detect acoustic emission signals.
引用
收藏
页码：46 / 49
页数：4
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