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Simultaneous measurement of visible and far infrared light with optical modulating MEMS

Research Project

Project/Area Number 17H04912
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Intelligent mechanics/Mechanical systems
Research InstitutionThe University of Tokyo

Principal Investigator

Takahata Tomoyuki  東京大学, 先端科学技術研究センター, 特任准教授 (80529652)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Keywordsマイクロ・ナノデバイス / 画像 / 長波長赤外 / 光変調器 / キャリブレーション
Outline of Final Research Achievements

We worked on the principle verification of simultaneous measurement of visible light and long wavelength infrared (LWIR) light, and showed that even a detector sensitive to both visible and LWIR light can measure them independently by dual optical modulation, in which visible and LWIR light are modulated at separate frequencies. We also showed how to reduce the noise level by taking into account the complex impedance of the piezoresistive device at high frequencies. Furthermore, as necessary elemental technologies for simultaneous visible and LWIR measurements, we showed how to verify the coaxiality of visible and LWIR images and a design of a thermally active calibration board for visible and LWIR calibration.

Academic Significance and Societal Importance of the Research Achievements

ヒトやモノの移動を支援するシステムとしてパーソナルモビリティや配送ロボットなどの自律移動ロボットの研究開発が盛んに行われており、その実用化のためには生活空間に多数存在するガラスを確実に検出できること重要な課題となっている。これまでの研究により可視・LWIR同軸カメラによってガラスの検出が可能であることが示されてきた。本研究の成果は可視・LWIR同軸カメラを従来よりも格段に小型化して移動ロボットに容易に搭載することや、同軸性の保証や安定したキャリブレーションを提供することにつながるものであり、自律移動ロボットの安全性の向上に資すると考えられる。

Report

(5 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (3 results)

All 2020 2018 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (1 results) Remarks (1 results)

  • [Journal Article] Coaxiality Evaluation of Coaxial Imaging System with Concentric Silicon-Glass Hybrid Lens for Thermal and Color Imaging2020

    • Author(s)
      Tomoyuki Takahata
    • Journal Title

      MDPI Sensors

      Volume: - Issue: 20 Pages: 5753-5753

    • DOI

      10.3390/s20205753

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ピエゾ抵抗型センサの複素インピーダンスを考慮した計測下限の低減2018

    • Author(s)
      高畑智之、下山勲
    • Organizer
      第35回「センサ・マイクロマシンと応用システム」シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Remarks] coaxial imaging of color and thermal images

    • URL

      https://t-tkht.github.io/takahata3.html

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report

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Published: 2017-04-28   Modified: 2023-01-30  

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