CARSを利用した水素ガスリーク検知

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2014/12/01

タイトル(英語): Detection of Hydrogen Gas Leak using CARS

著者名: 杉本　幸代（四国総合研究所），二宮　英樹（四国総合研究所），福地　哲生（電力中央研究所 電力技術研究所）

著者名(英語): Sachiyo Sugimoto (Shikoku Research Institute), Hideki Ninomiya (Shikoku Research Institute), Tetsuo Fukuchi (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry)

キーワード: 水素ガス，ラマン散乱，アンチストークス光，CARS法，レーザ，ラマンセル　　hydrogen gas，Raman scattering，anti-Stokes light，CARS，laser，Raman cell

要約(英語): In this study, leakage hydrogen gas was measured using Coherent Anti-Stokes Raman Spectroscopy (CARS) using a fiber-coupled, compact spectrometer. The Anti-Stokes light intensity was proportional to the square of the hydrogen gas density, which confirmed that the Anti-Stokes light was generated by CARS. When hydrogen gas was released from a nozzle, the spatial range in which the Anti-Stokes light could be detected was 1mm in the lateral direction directly above the nozzle. The dependence of the detectability of Anti-Stokes light on the material of a reflector placed behind the nozzle was investigated, which showed that Anti-Stokes light could be detected when the reflector was metal, rusted metal, or acrylic. The Anti-Stokes light could also be detected when low concentration (≦4%) hydrogen gas was released from the nozzle. The signal-to-noise ratio exceeded 1 when the concentration was over 0.4%. These results indicated the possibility of a hydrogen leak detector using CARS, to detect minute hydrogen gas leakage faster than conventional leak detectors.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.134 No.12 （2014） 特集：電気関係学会東海支部連合大会

本誌掲載ページ: 1869-1874 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/134/12/134_1869/_article/-char/ja/