The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2022
Filed:
May. 11, 2022
Guangdong Ocean University, Zhanjiang, CN;
Wenhua Wang, Zhanjiang, CN;
Wenqing Shi, Zhanjiang, CN;
Zhengye Xiong, Zhanjiang, CN;
Weina Wu, Zhanjiang, CN;
Yansheng Zhang, Zhanjiang, CN;
Yuanzheng Luo, Zhanjiang, CN;
Yuping Xie, Zhanjiang, CN;
Xianxiang Fei, Zhanjiang, CN;
Jiang Huang, Zhanjiang, CN;
Xuehui Lai, Zhanjiang, CN;
Chuhong Wang, Zhanjiang, CN;
GUANGDONG OCEAN UNIVERSITY, Zhanjiang, CN;
Abstract
A Michelson interference optical fiber temperature sensor for detecting fringe contrast change is provided. It includes a light source, an optical fiber coupler connected to a first optical fiber and a second optical fiber, a coarse wavelength division multiplexer, a first photodetector, a second photodetector, a display device, and a processing circuit connected to the display device. The light source, optical fiber coupler and coarse wavelength division multiplexer are connected sequentially in that order. The coarse wavelength division multiplexer is connected to the first photodetector and the second photodetector individually. The first photodetector and the second photodetector are connected to the processing circuit. An end of the first optical fiber or the second optical fiber facing away from the optical fiber coupler is connected to a semiconductor. It has advantages of simple and fast manufacturing process, safe and reliable sensor, stable signal, low cost, high sensitivity and high precision.