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Development of real-time high-precision optical gauge using pulse train spacing length

Research Project

Project/Area Number 19K04103
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionNagaoka University of Technology

Principal Investigator

WEI DONG  長岡技術科学大学, 工学研究科, 准教授 (70610418)

Co-Investigator(Kenkyū-buntansha) 明田川 正人  長岡技術科学大学, 工学研究科, 教授 (10231854)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords精密計測 / 応用光学 / 測長 / 分解能 / 干渉縞解析 / 長さ計測 / 歪みのある離散フーリエ変換 / 光コム / ゲージブロック / パルスレーザー / 干渉縞 / 干渉 / 干渉計 / 光ゲージ
Outline of Research at the Start

2009年、フェムト秒光周波数コム(光コム)が日本における長さの国家標準になった。グローバル・ポジショニング・システム(英語: Global Positioning System, Global Positioning Satellite, GPS、全地球測位システム)や光ファイバーを通して、光コムにつながった長さトレーサビリティー体系を構築可能となる。いつでも、どこでも、誰でも長さの国家標準を参照し、長さ計測を実施できる。この体系に基づいた計測や品質管理などが生産の高度化を推進できる。この体系で簡便に利用できるパルス列間隔長を用いた実時間高精度光ゲージの開発が本研究の目的である。

Outline of Final Research Achievements

Optical frequency combs (optical combs) are attracting attention as stable light sources. This study is developing a length measurement method using the repetition interval length of adjacent pulse trains. In the conventional method, by using interference fringe processing, all envelopes were reconstructed using the discrete Fourier transform and the inverse discrete Fourier transform. The data needed is the envelopes around its peak to determine the position of envelope peak. In this study, we studied the contents related to the reconstruction of an warped envelope of the interference fringes by the warped discrete Fourier transform, which are non-linear discrete Fourier transforms. Instead of the discrete Fourier transform, we used the chirp Z-transform to verify how to select and reconstruct only the envelope near the envelope peak.

Academic Significance and Societal Importance of the Research Achievements

光周波数コム(光コム)は安定した光源として注目されている。安定した光コムは、波長と隣接したパルス列の繰返し間隔長が長さの物差として使える。本研究はこの繰返し間隔長を用いた測長法を開発している。これまでは、パルス列による干渉縞の再建に離散フーリエ変換が使われていた。非線形離散フーリエ変換を使えば、干渉縞包絡線のピークに応じてその位置分解能を増強できる。本研究では歪みのある離散フーリエ変換を用いた干渉縞包絡線再建を試みる。また、チャープ Z 変換により、一部の包絡線のみを再建する方法も検討した。これらの研究の成果は長さ計測に必要な包絡線ピークの高速化・高精度検出に役立つ。

Report

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

    (16 results)

All 2022 2021 2020 2019 Other

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] High-resolution demodulation of interference envelope peak at arbitrary positions by warped discrete Fourier transform2022

    • Author(s)
      Wei Dong、Fujiyama Taiga、Aketagawa Masato
    • Journal Title

      Results in Optics

      Volume: 6 Pages: 100218-100218

    • DOI

      10.1016/j.rio.2022.100218

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of two-dimensional warped discrete Fourier transform to nonlinear two-dimensional amplitude demodulation2022

    • Author(s)
      Wei Dong、Takeuchi Keitaro
    • Journal Title

      Optics Communications

      Volume: 510 Pages: 127972-127972

    • DOI

      10.1016/j.optcom.2022.127972

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Determining a bandpass filter for interfering fringe spectrum extraction using clustering analysis2021

    • Author(s)
      Wei Dong、Nagata Yusuke、Sano Motohisa、Aketagawa Masato
    • Journal Title

      Optical Engineering

      Volume: 60 Issue: 03 Pages: 1-1

    • DOI

      10.1117/1.oe.60.3.034105

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cluster analysis based fringe-activity range detector2021

    • Author(s)
      Wei Dong、Nagata Yusuke、Sano Motohisa、Aketagawa Masato
    • Journal Title

      Optics Communications

      Volume: 483 Pages: 126626-126626

    • DOI

      10.1016/j.optcom.2020.126626

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A scanner error discriminator based on short-time Fourier transform in pulse train interferometry2021

    • Author(s)
      Wei Dong、Nagata Yusuke、Sano Motohisa、Aketagawa Masato
    • Journal Title

      Optics Communications

      Volume: 488 Pages: 126816-126816

    • DOI

      10.1016/j.optcom.2021.126816

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Envelope peak-adaptive resolution enhancement of interference fringes using a nonlinear frequency-to-time mapping2020

    • Author(s)
      Wei Dong、Nagata Yusuke、Aketagawa Masato
    • Journal Title

      Optics Communications

      Volume: 472 Pages: 125870-125870

    • DOI

      10.1016/j.optcom.2020.125870

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Suppression of noise in modulation frequency range of interferometer using spectral subtraction method2020

    • Author(s)
      Wei Dong、Nagata Yusuke、Aketagawa Masato
    • Journal Title

      Optics Communications

      Volume: 475 Pages: 126294-126294

    • DOI

      10.1016/j.optcom.2020.126294

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reconstruction of partial envelope of interference pattern based on chirp Z-transform2019

    • Author(s)
      Wei Dong、Meiyun Chen
    • Journal Title

      Optics Express

      Volume: 27 Issue: 10 Pages: 13803-13803

    • DOI

      10.1364/oe.27.013803

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] フェムト秒パルスレ ーザを光源とするパ ルス列干渉計の干渉 縞包絡線ピークの高 分解能検出2022

    • Author(s)
      藤山大雅 韋冬, 明田川正人
    • Organizer
      2022年精密工学会春季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 干渉縞信号の形成特徴に注目した信号処理によるパルス列干渉計における変位測定の高精度化2021

    • Author(s)
      長田 悠佑, 韋冬, 明田川正人,藤山大雅
    • Organizer
      2021年精密工学会春季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 干渉縞信号の形成特徴に注目した信号 処理によるパルス列干渉計における変位測定の高精度化2021

    • Author(s)
      長田 悠佑,韋 冬,明田川 正人,藤山 大雅
    • Organizer
      2021年度精密工学会春季
    • Related Report
      2020 Research-status Report
  • [Presentation] 歪みのある離散フーリエ変換による干渉縞包絡線再建2019

    • Author(s)
      韋 冬,長田 悠佑,明田川 正人
    • Organizer
      日本光学会 Optics and Photonics Japan 2019
    • Related Report
      2019 Research-status Report
  • [Presentation] 包絡線ピーク近傍の干渉縞包絡線の選択再建2019

    • Author(s)
      韋 冬、陳 梅雲
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Partial reconstruction of phase of interference pattern based on a generalized discrete Fourier transform2019

    • Author(s)
      Dong Wei and Meiyun Chen
    • Organizer
      SPIE/COS Photonics Asia, 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 研究者詳細

    • URL

      https://souran.nagaokaut.ac.jp/view?l=ja&u=100000303&a2=0000013&a3=0000032&sm=affiliation&sl=ja&sp=1

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report
  • [Remarks] 研究室ホームページ

    • URL

      https://mcweb.nagaokaut.ac.jp/~weidong/

    • Related Report
      2021 Annual Research Report

URL: 

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

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