Detection of Various Damages based on Piezoceramic Optical Fiber Sensor

摘要：

A piezoelectric ultrasonic sensing system based on an optical fiber has been developed for detection of various damages.The ultrasonic wave generated from a piezoelectric actuator is guided and propagated in the optical fiber and then sensed by a piezoelectric sensor located at the other end of the fiber.The sensed signal can be influenced by environmental and physical changes around the optical fiber.In this study,the sensitivity of the optical fiber sensor is experimentally studied.Various patterns of damage,such as cracks,loosen bolts,holes,are more common forms in real structures.In particular,detection method of the damage with respect to various depths of the crack is presented in this paper.

关键词： optical fiber ultrasonic wave piezoceramic sensor various damage

作者: HONG Yong WANG Gao-Ping HWANG Seung-Ho KIM Hyun-Sik HONG Dong-Pyo

作者单位: Department of Precision Mechanical Engineering,Chonbuk National University,Jeonjusi Jeonbuk,561-756,South Korea

会议类型: 国际会议

会议名称: The 8th International Conference on Damage Assessment of Structures(DAMAS 2009)(第八届结构损伤评价国际学术会议)

会议地点: 北京

会议语种:英文

页码: 367-372

在线出版日期: 2009-08-03（万方平台首次上网日期，不代表论文的发表时间）