Performance Comparison of Real-Time Laser Absorption Spectrometers for NH_3 Detection at 1.54 and 3.03μm in a H_2O Vapor Mixture

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We described the demonstration of real-time NH<SUB>3</SUB> detection with simulated flue gas conditions containing H<SUB>2</SUB>O and CO<SUB>2</SUB> using direct laser absorption spectrometry. The most appropriate absorption lines at 3.03 and 1.54μm were carefully selected from the HITRAN database and the absorption spectral atlas of NH<SUB>3</SUB> absorption in the 1.5μm region, and measurement sensitivity was compared in detail for absorption intensity and spectral interference associated with pressure broadening. Rapid NH<SUB>3</SUB> detection with total measurement response time less than 10 seconds was achieved completely interference free from H<SUB>2</SUB>O and CO<SUB>2</SUB> absorption spectra resulting in minimum detectable concentration of 0.7 ppm at 6510.986cm<SUP>-1</SUP> and 2ppm at 3295.388cm<SUP>-1</SUP> at an elevated gas temperature of 400 K.

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  • レーザー研究  

    レーザー研究 35(3), 173-179, 2007-03-15 

    The Laser Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018870001
  • NII書誌ID(NCID)
    AN00255326
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    03870200
  • NDL 記事登録ID
    8751173
  • NDL 雑誌分類
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL 請求記号
    Z16-1040
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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