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Laser Doppler velocimetry for three-dimensional distribution measurement of velocity vectors based on optical spatial encoding

Research Project

Project/Area Number 19K04426
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionKagawa University

Principal Investigator

Maru Koichi  香川大学, 創造工学部, 教授 (00530164)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords計測工学 / 計測機器 / 速度分布計測 / レーザドップラー速度計 / 速度計測
Outline of Research at the Start

申請者は,光を用いた非接触な速度分布計測技術として,精密な位置情報取得を可能とする光空間エンコード化と,高精度かつ空間分解能の高い計測が可能な差動型レーザドップラー速度計測技術を利用した手法を提案してきた.本研究では,提案手法を発展させ,高精度で扱いやすい新たな3次元空間速度ベクトル分布計測方法を確立するための技術開発を行い,使い勝手の良い装置を実現するための道筋を模索する.

Outline of Final Research Achievements

We studied the technologies to establish the method for measuring three-dimensional distributions of velocity vectors based on optical spatial encoding and differential laser Doppler velocimetry. We demonstrated the three-dimensional distribution measurement of a velocity component by developing a 4x4x5-channel experimental setup. We also developed the measurement system for measuring three velocity components for measuring velocity vectors. In addition, we designed Nb2O5/SiO2-based input/output grating couplers with high optical efficiency for integrated waveguide devices.

Academic Significance and Societal Importance of the Research Achievements

本研究の提案手法により,3次元空間内の精密な位置情報取得を可能としたファイバ光学系による扱いやすい3次元速度分布計測装置が実現できる.この結果,産業分野や医療分野等,様々な分野への貢献が期待できる.また,光学系を集積化することで,マイクロ流路等の微小領域で高精度に速度分布を計測するための超小型装置の実現が期待でき,創薬等に利用されるマイクロ流体デバイスの開発等に役立てることができる.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Two-dimensional spatially encoded cross-sectional velocity distribution measurements based on coherent bias-frequency encoding and wavelength-division multiplexing2021

    • Author(s)
      K. Maru
    • Journal Title

      Opt. Commun.

      Volume: 485 Pages: 126740-126740

    • DOI

      10.1016/j.optcom.2020.126740

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Two-dimensional distribution measurement of in-plane velocity component using bias-frequency spatial encoding2021

    • Author(s)
      K. Maru, Y. Hashimoto, S. N. A. B. Abd Ghafar
    • Journal Title

      Opt. Eng.

      Volume: 60 Issue: 03

    • DOI

      10.1117/1.oe.60.3.034108

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Differential laser Doppler velocimetry for cross-sectional velocity distribution measurements using 48-channel spatial encoding and nonmechanical scanning2019

    • Author(s)
      K. Maru, Y. Yoshida, M. Yukinari, R. Kimura
    • Journal Title

      Opt. Rev.

      Volume: 26 Issue: 5 Pages: 487-492

    • DOI

      10.1007/s10043-019-00544-0

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Design of transmission-type refractive index sensor, based on silica planar lightwave circuit using combination of refractive angle and phase measurements2019

    • Author(s)
      K. Maru
    • Journal Title

      Sensors

      Volume: 19 Issue: 19 Pages: 4095-4095

    • DOI

      10.3390/s19194095

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Nb2O5-based grating coupler employing multiple Nb2O5/SiO2 layers in integrated probe for cross-sectional velocity distribution measurement2021

    • Author(s)
      K. Maru, Y. Yamamoto, K. Nakatsuhara
    • Organizer
      26th Microoptics Conference (MOC2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 空間エンコード化と波長走査を組み合わせた3次元速度分布計測方法2021

    • Author(s)
      山地陽翔,S. N. A. B. Abd Ghafar,丸浩一
    • Organizer
      令和3年度SICE四国支部学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Velocity distribution measurements based on differential laser Doppler velocimetry2020

    • Author(s)
      K. Maru
    • Organizer
      30th International Symposium on Imaging, Sensing, and Optical Memory (ISOM’20)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Simultaneous cross-sectional velocity distribution measurements using laser Doppler velocimeter employing 7 × 8 spatial encoding2019

    • Author(s)
      M. Yukinari, K. Maru
    • Organizer
      24th Microoptics Conference (MOC2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of chirped focusing grating coupler in Nb2O5-based integrated probe for laser Doppler cross-sectional velocity distribution measurement2019

    • Author(s)
      S. Doi, K. Maru, K. Nakatsuhara
    • Organizer
      24th Microoptics Conference (MOC2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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