用于轨道交通的声发射检测技术.pdf

This full text paper was peer-reviewed at the direction of IEEE Instrumentation and Measurement Society prior to the acceptance and publication. Fibre Optic Acoustic Emission Measurement Technique for Crack Activity Monitoring in Civil Engineering Applications Ginu Rajan, Sagar Jinachandran and Jiangtao Xi Jayan S. Vinod, Tristan Moses and Shivakumar School of Electrical Computer and Telecommunications Karekal Engineering University of Wollongong, Australia School of Civil, Mining and Environmental Engineering University of Wollongong, Australia Huijun Li B. Gangadhara Prusty School of Mechanical, Materials and Mechatronics Engineering School of Mechanical and Manufacturing Engineering UNSW Australia University of Wollongong, Australia Abstract—Fibre Bragg grating based acoustic emission wide variety of applications [5-7]. Because of their minimal measurement technique is employed to monitor crack activity in weight, small size, high bandwidth, and immunity to civil engineering structures and sites. The feasibility and electromagnetic interference, fibre-optic sensors