文献类型：期刊文献

英文题名：Monolithic Structure-Optical Fiber Sensor with Temperature Compensation for Pressure Measurement

作者：Wang, Wenhua[1];Zhou, Xinlei[2];Wu, Weina[3];Chen, Jihua[1];He, Shenlong[1];Guo, Weifeng[1];Gao, Junbin[1];Huang, Shaoxin[1];Chen, Xuanhua[1]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China;[3]Guangdong Ocean Univ, Sch Math & Comp Sci, Zhanjiang 524088, Peoples R China

年份：2019

卷号：12

期号：4

外文期刊名：MATERIALS

收录：SCI-EXPANDED(收录号：WOS:000460793300002)、、EI(收录号：20190806516114)、Scopus(收录号：2-s2.0-85061546074)、WOS

基金：This research was funded by the Innovation and Entrepreneurship Training Program for Undergraduate of GDOU (NO. CXLL2018178), China, the Science and Technology Planning of Guangdong Province (NO. 2015A030401094), China, and the Scientific Research Project for Innovation and Strengthening College Engineering of GDOU (NO. 2017052504), China.

语种：英文

外文关键词：optical fiber sensor; laser welding; pressure; Fabry-Perot interferometer; fiber Bragg grating

外文摘要：In this paper, an optical fiber pressure sensor cascading a diaphragm-assisted Fabry-Perot interferometer (FPI) and a fiber Bragg grating (FBG) is proposed and demonstrated. The sensor comprises an optical fiber, a fused-silica ferrule, and a fused-silica diaphragm. We use a femtosecond laser firstly to fabricate a pit on the end face of the ferrule and then investigate the laser heat conduction welding and deep penetration welding technology for manufacturing the seepage pressure sensor of the all-fused-silica material. We develop a sensor based on a monolithic structured FPI without adhesive bonding by means of all-laser-welding. The pressure characteristics of the sensor have good linearity at different temperatures. Also, the monolithic structured sensor possesses excellent resolution, hysteresis, and long-term stability. The environmental temperature obtained by the FBG is employed to compensate for the difference in seepage pressure at different temperatures, and the difference in seepage pressure responses at different temperatures is shown to be very small after temperature compensation.