HIGH-PRECISION TEMPERATURE DEMODULATION METHOD ORIENTED TOWARD DISTRIBUTED FIBER RAMAN SENSOR

WIPO Patent Application WO/2020/034558

A1

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 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 measuring accuracy thereof is expected to fall within ±0.1°C. The method is applicable to distributed fiber Raman temperature measurement systems.

ZHANG MINGJIANG (CN)
LI JIAN (CN)
ZHANG JIANZHONG (CN)
QIAO LIJUN (CN)
WANG TAO (CN)
WANG YUNCAI (CN)
JIN BAOQUAN (CN)
WANG YU (CN)
WANG DONG (CN)

PCT/CN2019/000087

February 20, 2020

May 05, 2019

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UNIV TAIYUAN TECHNOLOGY (CN)

G01K11/32

CN108871607A	2018-11-23
CN204612831U	2015-09-02
CN202582784U	2012-12-05
CN104344913A	2015-02-11
CN106323499A	2017-01-11
CN106404217A	2017-02-15
CN107421657A	2017-12-01
JP2007240174A	2007-09-20

TAIYUAN KEWEI PATENT OFFICE (GENERAL PARTNER) (CN)

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