Topic：International Optics and Photonics Conference presentation

Time： 8:00am,December 16, 2019

Location：Room2333, Middle Building 3, Xingqing Campus

Presenter：Ning WANG (王宁)

Conference Name: International Optics and Photonics Conference

Conference Time： December 9-10, 2019

Conference Location：London, UK

Conference Introduction：

Theme: "Join us to Present your Cutting-edge Research Work in Optics & Photonics". This conference have an elemental feature to the world distinguished motive speakers, plenary speeches, young investigators & researchers forum, poster presentations, oral presentations, technical workshop, Symposiums and scientific sessions.The goal of OLCOPC-2019 is to bring together scientists, researchers, students, and representative from industries, research agencies, government, NGOs, and reputed universities to further their medical education/ business/ research. These meetings in our list are basically important to researchers working in every aspect of Optics, Photonics and its branches.This conference offers good opportunities for the researchers and delegates to exchange new ideas, and to establish research and/or business links, as well as to build global partnership for potential collaboration. We sincerely hope that the conference will help advance knowledge in relevant scientific and academic fields.

Information of conference paper：

Title：An Approach for Large-Range Optical Fiber Detection with Regard to Air Gap of Direct-Driven Wind Turbine

Author：Ning Wang, Xiaodong Zhang, Zhen Zhao, Hongcheng Liu, Zhihao Xu

Abstract：In recent years, with the increasing popularity of wind power technology and the rapid development of wind power industry, the production of Direct-Driven Wind Turbines (DDWT)is increasing year by year in the world. The air gap between stator and rotor is an important parameter to characterize its fault information, whose size generally ranges from 4 to 8 mm. In this paper, the measurement range of the current double-loop coaxial optic fiber displacement sensor is firstly analysed, so that an approach for increasing the measurement range of the optic fiber sensor is proposed by increasing the number of receiving optic fiber circles. And then,the mathematical model of output modulation function is deduced when the sensor has different number of receiving optical fibers, and the simulation results for the modulation function of the multi-loop receiving optical fibers sensor show that the measurement range of the dual-loop coaxial optical fibers displacement sensor can be increased with 71.9% by comparing with the current one. Finally, in the calibration experiment of the sensor, the results of the actual measurement range are consistent with the theoretical simulation.