ラマン分光法による局所水素ガス濃度非接触計測技術の開発

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: 2018/09/01

タイトル(英語): Development of Hydrogen Gas Non-contact Concentration Measurement Technology for Micro-area Observation

著者名: 杉本　幸代（（株）四国総合研究所），朝日　一平（（株）四国総合研究所），椎名　達雄（千葉大学）

著者名(英語): Sachiyo Sugimoto (Shikoku Research Institute, INC.), Ippei Asahi (Shikoku Research Institute, INC.), Tatsuo Shiina (Chiba University)

キーワード: レーザ，ラマン分光法，水素，ライダ　　laser，Raman spectroscopy，hydrogen，lidar

要約(英語): When change over time of hydrogen gas concentration in a certain point is measured, a gas sensor is fixed at the measurement point, or a syringe is utilized to sample the gas, which is analyzed by gas chromatography. However, the gas sensor and the syringe have an influence on gas flow and its measurement. Non-contact measurement technology with high temporal resolution and high spatial resolution is necessary. Therefore, in this study, for the purpose of non-contact measurement of the hydrogen gas concentration in the small area under the gas flow, a specialized experimental device was developed. A laser beam (wavelength 355nm, pulse energy 120μJ, PRF 1kHz) with the beam diameter 1mmφ at the measurement spot was irradiated to the hydrogen gas. Raman scattering light at the measurement point of 750mm ahead was focused by Fresnel lens, which is arranged at the orthogonal direction against the transmitting laser beam. As a result, it was proved that Raman signal intensity had good linear correlation with hydrogen density of more than 100ppm. The gas concentration in a small area could be quantitatively estimated without interference of the gas flow.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.138 No.9 （2018） 特集Ⅰ：知能メカトロニクス分野と連携する知覚情報技術 特集Ⅱ：国際会議ICESS 2017

本誌掲載ページ: 1163-1168 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/138/9/138_1163/_article/-char/ja/