Distributed Temperature Sensing Using Cyclic Pseudorandom Sequences

被引：16
|
作者：
Brinatti Vazquez, Guillermo Daniel [1 ,2 ]
Eduardo Martinez, Oscar [1 ,2 ]
Kunik, Dario [3 ,4 ]
机构：
[1] Univ Buenos Aires, Fac Ingn, Lab Foton, C1063ACV, Buenos Aires, DF, Argentina
[2] Consejo Nacl Invest & Tecn, RA-C1425FQB Buenos Aires, DF, Argentina
[3] YPF Tecnol, Lab Sensores Foton, C1923, Buenos Aires, DF, Argentina
[4] Consejo Nacl Invest Cient & Tecn, C1425FQB, Buenos Aires, DF, Argentina
来源：
IEEE SENSORS JOURNAL | 2017年 / 17卷 / 06期
关键词：
Optical fiber sensors; temperature sensors; M SPATIAL-RESOLUTION; SENSORS; CODES;
D O I：
10.1109/JSEN.2016.2647206
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An alternative for commercial Raman-Optical Time Domain Reflectometry (OTDR) distributed temperature sensors is presented, where a pseudorandom pulse sequence is used to increase the signal to noise ratio. Additionally, a deconvolution algorithm is proposed to eliminate distortions in the reconstruction arising from the real correlation properties of the sensing signal. An improvement in SNR of a factor 11 respect to the Raman-OTDR method at the same peak power was achieved, allowing 2 m and 1.5 degrees C resolution in a 6 s measurement using a 90-mW Continuous wave semiconductor laser.
引用
收藏
页码：1686 / 1691
页数：6
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