caa a22 4500 445858559 CHVBK 20180317145436.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10946-011-9207-1 doi (NATIONALLICENCE)springer-10.1007/s10946-011-9207-1 Measurements of radiation vibrations of turbomachine blades using an optical-fiber displacement-sensing system [Elektronische Daten] [Tong Qing-bin, Ma Hui-ping, Liu Li-hua, Zhang Xiao-dong, Li Gui-bin] Turbomachine blades are critical equipment in the energy, chemical, aviation, and shipbuilding industries. Turbomachine-blade vibrations can cause high cycle fatigue, which reduces the blade lifetime. Their stable operation is a determining factor of safe and efficient production. In order to monitor and detect the turbomachine-blade vibrations and check whether whole or partial performance is normally operating, we design a reflective intensity-modulated optical-fiber sensing system for radial vibration detection of turbomachine blades and introduce the basic principles of the detection system in detail. We study some key technologies such as the control system of the laser-diode (LD) constant power and an optical-fiber coupling system with the optical-fiber-bundle structure. We analyze the sensor output characteristics and present some numerical simulations. In view of our experimental results, we show that the system elaborated can eliminate the effects caused by light-intensity fluctuations, optical-fiber flexural losses, and changes in the surface reflection coefficient, and can detect the radial vibrations of turbomachine blades in the presence of strong electromagnetic interference and under high temperatures. Springer Science+Business Media, Inc., 2011 turbomachine blades nationallicence vibration detection nationallicence optical-fiber sensing system nationallicence control system of the LD constant power nationallicence optical-fiber bundle nationallicence coupling nationallicence Qing-bin Tong School of Electrical Engineering, Beijing Jiaotong University, 100044, Beijing, China aut Hui-ping Ma School of Electrical Engineering and Automation, Harbin Institute of Technology, 150001, Harbin, China aut Li-hua Liu School of Electrical Engineering and Automation, Harbin Institute of Technology, 150001, Harbin, China aut Xiao-dong Zhang School of Electrical Engineering, Beijing Jiaotong University, 100044, Beijing, China aut Gui-bin Li Beijing Revitalization of Measuring and Testing Institute, 100074, Beijing, China aut Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/3(2011-05-01), 216-229 1071-2836 32:3<216 2011 32 10946 https://doi.org/10.1007/s10946-011-9207-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10946-011-9207-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qing-bin Tong School of Electrical Engineering, Beijing Jiaotong University, 100044, Beijing, China aut NATIONALLICENCE 700 1- Hui-ping Ma School of Electrical Engineering and Automation, Harbin Institute of Technology, 150001, Harbin, China aut NATIONALLICENCE 700 1- Li-hua Liu School of Electrical Engineering and Automation, Harbin Institute of Technology, 150001, Harbin, China aut NATIONALLICENCE 700 1- Xiao-dong Zhang School of Electrical Engineering, Beijing Jiaotong University, 100044, Beijing, China aut NATIONALLICENCE 700 1- Gui-bin Li Beijing Revitalization of Measuring and Testing Institute, 100074, Beijing, China aut NATIONALLICENCE 773 0- Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/3(2011-05-01), 216-229 1071-2836 32:3<216 2011 32 10946 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer