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High-sensitivity and high-resolution spectral measurement of trace moisture using wavelength-meter controlled CRDS system

Research Project

Project/Area Number 17K14507
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Analytical chemistry
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Hashiguchi Koji  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (00712506)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsスペクトル測定 / 高感度 / 高分解能 / 波長計 / 微量水分 / キャビティリングダウン分光法 / スペクトル解析 / キャビティリングダウン分光法(CRDS) / 周波数制御 / 共振器 / 光計測 / 計測工学 / 分析科学
Outline of Final Research Achievements

We achieved high-sensitivity and high-resolution spectral measurement of trace moisture in gases using the “wavelength-controlled cavity ring-down spectroscopy (CRDS)”. By controlling the resonant frequency of the cavity and the frequency of the probe laser using a single wavelength meter, we performed stable measurement and removed the limitation of measurement frequency. We measured spectra accurately in both the vertical axis (absorption intensity) and the horizontal axis (frequency), and we verified the function used for spectrum analysis and the result of the analysis. We also achieved the detection sensitivity for trace moisture less than 10 ppt.

Academic Significance and Societal Importance of the Research Achievements

近年の産業のハイテク化に伴って、ガス中に微量に存在する水を精確に測定・管理する需要が高まってきている。今回の研究によって、微量水分の高感度測定が可能となり、この需要に対応できるようになった。また、水の吸収スペクトルを精度よく測定することが可能となり、詳細なスペクトル解析が可能となった。今後、解析を進めることで、用いる関数の妥当性の検証や、解析の結果得られる各種パラメータの検証を行うことができる。パラメータの精度向上を通じて、分子分光の高精度化への貢献が期待できる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Parts-per-trillion sensitivity for trace-moisture detection using wavelength-meter-controlled cavity ring-down spectroscopy2019

    • Author(s)
      Hashiguchi Koji、Lisak Daniel、Cygan Agata、Ciuryo Roman、Abe Hisashi
    • Journal Title

      AIP Advances

      Volume: 9 Issue: 12 Pages: 125331-125331

    • DOI

      10.1063/1.5127786

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 高精度微量水分測定に向けたCRDSにおけるデータ解析の検証2020

    • Author(s)
      橋口幸治、Lisak Daniel、Agata Cygan、阿部恒
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] WAVELENGTH-METER CONTROLLED CRDS SYSTEM FOR HIGH-SENSITIVE DETECTION OF TRACE MOISTURE2019

    • Author(s)
      橋口幸治、Lisak Daniel、Agata Cygan、Roman Ciuryo、阿部恒
    • Organizer
      TEMPMEKO2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HIGH-SENSITIVITY MEASUREMENT OF TRACE MOISTURE IN N2 USING WAVELENGTH-METER CONTROLLED CRDS SYSTEM2019

    • Author(s)
      橋口幸治、Lisak Daniel、Agata Cygan、Roman Ciuryo、阿部恒
    • Organizer
      TEMPMEKO2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高感度微量水分測定に向けたスペクトル解析手法の検証2019

    • Author(s)
      橋口幸治、Lisak Daniel、Agata Cygan、阿部恒
    • Organizer
      第80回 応用物理学会 秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 波長計制御型CRDSを用いた高感度・高分解能スペクトル測定2019

    • Author(s)
      橋口幸治、Lisak Daniel、Agata Cygan、阿部恒
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Wavelength-meter controlled cavity ring-down spectroscopy for measurement of trace water vapor at ppt levels2018

    • Author(s)
      橋口幸治、Lisak Daniel、Agata Cygan、Roman Ciuryo、阿部恒
    • Organizer
      25th International Conference on High Resolution Molecular Spectroscopy
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 波長計制御型CRDS微量水分計を用いた水の吸収スペクトル測定の高感度化・高分解能化2018

    • Author(s)
      橋口幸治、Lisak Daniel、阿部恒
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 波長計制御型CRDSによるガス中微量水分の超高感度測定2018

    • Author(s)
      橋口 幸治、Lisak Daniel、阿部 恒
    • Organizer
      第18回分子分光研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] Measuring system of trace moisture: Wavelength-meter controlled cavity ring-down spectroscopy2017

    • Author(s)
      橋口 幸治、Lisak Daniel、阿部 恒
    • Organizer
      GAS ANALYSIS 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 国際会議 GAS Analysis 2017の報告2017

    • Author(s)
      橋口 幸治
    • Organizer
      湿度、水分計測・センサ研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] ガス中微量水分の高感度吸収スペクトル測定2017

    • Author(s)
      橋口 幸治、Lisak Daniel、阿部 恒
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Book] 分光研究 分光便利帳 波長計を用いた周波数測定における系統誤差2019

    • Author(s)
      橋口幸治
    • Total Pages
      3
    • Publisher
      日本分光学会
    • Related Report
      2019 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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