REFLEX FIBER OPTIC SENSOR FOR MICRO-ANGULAR DISPLACEMENT MEASUREMENT

摘要：

A reflex fiber optic sensor for two-dimensional angular displacement measurement is proposed. It uses four linear light receiving fiber arrays arranged as a crisscross spoke and a charge-coupled device (CCD) as the detector for the reflex modulated light information. Light intensity received by each receiving fiber will change due to the measured angular displacement and be recorded by the CCD. Based on the Gauss distribution theory, reflected light spot center can be determined by fitting a Gauss curve according to each received light intensity and the position of each receiving fibers. With this method, measurement errors caused by surface reflection index variation, light power fluctuation, and ambient light disturbance will be effectively avoided. Sensor structure and measurement principle is described.

关键词： fiber optic sensor angular displacement measurement charge-coupled device Gauss beam

作者: Yong Zhao Kun Chen Xing-jie Ni Bao-jin Peng Jian Yang

作者单位: Tsinghua University, Department of Automation, Beijing 100084, China Zhejiang Normal University, Institute of Information Optics, Jinhua 321004, China

会议类型: 国际会议

会议名称: The 5th International Conference on Optical Communications and Networks & the 2nd International Symposium on Advances and Trends in Fiber Optics and Applications(第5届国际光通信与网络年会暨第2届纤维光学发展现状与未来趋势国际学术研讨会)

会议地点: 成都

会议语种:英文

页码: 455-458

在线出版日期: 2006-09-18（万方平台首次上网日期，不代表论文的发表时间）