1Hebei Province Key Laboratory of Test/Measurement Technology and Instrument, School of Electrical Engineering, Yanshan University, Qinhuangdao, Hebei 0 66004, China
2Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, Hebei 0 66004, China
3He Bei Sailhero Environmental Protection High-Tech Co., Ltd., Shijiazhuang, Hebei 0 50000, China