成果報告書詳細
管理番号20160000000307
タイトル*平成27年度中間年報 水素利用技術研究開発事業 水素ステーション安全基盤整備に関する研究開発 光学式水素ガスセンサおよび水素ガスリークディテクタの研究開発
公開日2016/8/31
報告書年度2015 - 2015
委託先名株式会社四国総合研究所 国立大学法人千葉大学
プロジェクト番号P13002
部署名新エネルギー部
和文要約
英文要約Title : Research and development project for hydrogen utilization technology. Research and development concerning hydrogen station safety infrastructure development. Research and development of an optical hydrogen gas sensor and a hydrogen leak detector. (FY2014-FY2017) FY2015 Annual Report

(1) Research and development of an optical hydrogen gas sensor. (a) Development of sensor chip. A sensor chip was fabricated using the ceramics optics bench which was designed in 2014. The dimensions of the sensor chip were 21x28x12 mm, and the sensor chip was heat-resistant up to a temperature of 200 oC. The hydrogen gas density measurement charateristics of the sensor chip was evaluated, and the sensor chip was found to have a response time of under 2 seconds, a hydrogen gas detection limit of under 500 ppm. (b) System development. A high speed A/D processing circuit was fabricated and combined with software. Gas concentration monitoring was possible for a transmission distance of 15 m using the main system of dimensions 400x430x200 mm. In addition, channel change with a light switch showed that multichannel measurement was possible. (c) Development of a MEMS monochromator. A MEMS monochrometer was fabricated using Si micro-grating and a MEMS rotational actuator fabricated in 2014. Atmospheric constitutent and hydrogen were separated and could be detected using a spectroscopic optical system with a dimension of less than 80x80x20 mm. (d) Research of possibility of the application of the semiconductor laser light source. The possibility of application of a semiconductor laser was researched. It was verified that detection of hydrogen gas of % order concentration was possible using a continuous wave laser semiconductor of wavelength 405 nm and output 600 mW. (2) Research and development of a hydrogen leak detector. (a) System development. The optimal optical layout for stable Stokes light generation and hydrogen gas concentration measurement was determined, by optimizing the spatial intensity profile of the laser beam irradiated on the Raman cell. The function model of the source of light was designed and fabricated by the examination result. It was verified that using an ultraviolet laser of energy 3 mJ, hydrogen gas concentration of 500 ppm could be measured at a transmission distance of 1.0 m with a precision of 30% or less. (b) Development of probe. Based on the basic test result by the light transmitting optical system using several reflecting mirrors, a functional model with high optical efficiency was designed, and a probe of transmission distance 1 m using 7 reflecting mirrors was fabricated.
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