Region selectable gas sensing for long distance pipeline maintenance

Mifang Lu; Koji Nonaka; Hirokazu Kobayashi; Jun Yang; Libo Yuan

doi:10.1117/12.970265

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17 October 2012 Region selectable gas sensing for long distance pipeline maintenance

Mifang Lu, Koji Nonaka, Hirokazu Kobayashi, Jun Yang, Libo Yuan

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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84212C (2012) https://doi.org/10.1117/12.970265
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

We propose a region selectable gas sensing system, which can address gases of single and/or different species at multilocations. This technique is based on optical spectroscopy of each selected numerous absorption lines of gas. Primary experiment using fiber-optic absorption sensors, sensing regions and region selectors are demonstrated. Specific FBGs are employed to reflect the selected spectrum for each sensing region. FBG monitor what encloses the tunable light source and spectrum analyzer works as selected gas and region absorptions measurement. Absorption ratio was estimated which indicates that the technique is applicable in lightweight fiber optic wide-regions gas sensing.

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Mifang Lu, Koji Nonaka, Hirokazu Kobayashi, Jun Yang, and Libo Yuan "Region selectable gas sensing for long distance pipeline maintenance", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212C (17 October 2012); https://doi.org/10.1117/12.970265

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