Coalmine safety monitoring system based on fiber optic AE sensor

摘要：

AE is a newly developed dynamic non-destructive teeh.By monitoring and analyzing the feature of AE occurred at coalmine,It can supply useful information for forecasting coal &methane outburst,micro-earthquake,geostatic impact and etc.Compared to Conventional PZT sensors disadvantage of low sensitivity and narrow amplitude response,Fiber optic AE sensor offers the advantage of simplicity low cost as well as non-contact monitoring and wide bandwidth.This paper introduces a single-ended optic fiber AE sensors working scheme and discuss the factor affected the sensors sensitivity.Finally make on site experimentation of it.

关键词： Coalmine safety Optical fiber AE sensor Fiber loop mirror

作者: Ma Liangzhu Chang Jun Liu Tongyu Wu Yanbin

作者单位: laser institute of Shandong Academy of Science,No.19 Keyuan Road,Jinan,250014

会议类型: 国际会议

会议名称: The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)

会议地点: 青岛

会议语种:英文

页码: 688-692

在线出版日期: 2007-10-17（万方平台首次上网日期，不代表论文的发表时间）