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:
Nov. 07, 2023
Filed:
May. 05, 2019
Taiyuan University of Technology, Taiyuan, CN;
Mingjiang Zhang, Taiyuan, CN;
Jian Li, Taiyuan, CN;
Jianzhong Zhang, Taiyuan, CN;
Lijun Qiao, Taiyuan, CN;
Tao Wang, Taiyuan, CN;
Yuncai Wang, Taiyuan, CN;
Baoquan Jin, Taiyuan, CN;
Yu Wang, Taiyuan, CN;
Dong Wang, Taiyuan, CN;
TAIYUAN UNIVERSITY OF TECHNOLOGY, Taiyuan, CN;
Abstract
A temperature demodulation method oriented toward a distributed fiber Raman temperature sensing system, the method comprising the following steps: step 1 of constructing a high-precision temperature detection device oriented towards a distributed fiber Raman sensing system; step 2 of performing signal processing with respect to Stokes light and anti-Stokes light at a calibration stage; step 3 of performing signal processing with respect to Stokes light and the anti-Stokes light at a measurement stage; and step 4 of obtaining a high-precision temperature demodulation technique oriented toward the distributed fiber Raman sensor. The method is used to effectively resolve the issue of low temperature measuring accuracy caused by Rayleigh crosstalk in existing distributed fiber Raman temperature measurement systems, and temperature measurement accuracy thereof is expected to fall within ±0.1° C. The method is applicable to distributed fiber Raman temperature measurement systems.