Compensating Technique of Fiber-Optic Sensor in Tip Clearance Measurement
Its an important problem to measure blade tip clearance of engine. According to the application environment of tip clearance sensor, a new fiber-optic sensor was put forward to measure the blade tip radial clearance of engine in non-contact mode. The sensor was consist of single-bundle transmitting fiber in the center for laser beam transmitting and three groups receiving fibers located in all around for collecting the scattered light. The sensor can not only eliminate the effect to measurement results of light source fluctuation and reflectivity variety of tip surface, but also reduce the effect of angle between the tip surface and sensor end face to measurement results. From the measurement results obtained from sensor on different clearance points, it proves that the sensor measuring system has well feasibility and reliability in blades tip clearance detection.
Tip Clearance Fiber-Optic Sensor Reflectivity compensating technique
MA Yuzhen DUAN Fajie SUN Xuan AI Changsheng
School of Mechanical Engineering, University of Jinan,Jinan, 250022, China State Key Laboratory of Measurement Technology and Instruments, Tianjin University, Tianjin, 300072,
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
2034-2037
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）