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Development of the broadband seismometer to construct a seismic network in ultimate environmental areas

Research Project

Project/Area Number 15K21600
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Solid earth and planetary physics
Natural disaster / Disaster prevention science
Research InstitutionThe University of Aizu (2016-2017)
National Astronomical Observatory of Japan (2015)

Principal Investigator

Yamada Ryuhei  会津大学, コンピュータ理工学部, 特別研究支援者 (60647379)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Keywords広帯域地震計 / 地震観測 / 極限環境域 / 回路設計 / フィードバック回路 / 小型広帯域地震計 / 地震観測試験 / 容量変位型検出器
Outline of Final Research Achievements

In this study, I have developed a broadband seismometer applicable to ultimate environmental areas such as ocean bottom, active volcanic area, polar region and lunar and planetary bodies. This broadband sensor is designed based on the short-period sensor loaded on the penetrator system for lunar exploration. I have designed and manufactured the negative feedback circuit and enlarged the resonant period of the seismometer from 1 second to 30 seconds,and this achieved the preliminary model of high sensitive, small and light-weights broadband seismometer.The ground test has been performed to investigate the response to ground motions in comparison to a commercially broadband seismometer in the seismic vault, and it found that our broabdand sensor could response to not only seismic events but also micro tremor. It has been recognized that reduction in the noise caused from the seismometer and investigation of the temprature characteristic should be future works.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (5 results)

All 2017 2016 Other

All Presentation (3 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Presentation] 極限環境域への地震観測網展開を目指した広帯域地震計の開発2017

    • Author(s)
      山田竜平
    • Organizer
      日本地震学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Development of the new broadband seismometers for moonquake observation2016

    • Author(s)
      Ryuhei Yamada
    • Organizer
      Asia Oceania Geosciences Society 2016
    • Place of Presentation
      中華人民共和国 北京
    • Year and Date
      2016-07-31
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development Of The New Broadband Seismometers For Moonquake Observation2016

    • Author(s)
      Ryuhei Yamada
    • Organizer
      Asia Oceania Geosciences Society 2016
    • Place of Presentation
      中華人民共和国 北京
    • Year and Date
      2016-07-31
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks] 国立天文台RISE月惑星探査検討室Webページ、奥州・江刺で地球を測る、そして月と惑星へ

    • Related Report
      2017 Annual Research Report
  • [Remarks] 国立天文台RISE月惑星探査検討室Webページ、奥州・江刺で地球を測る、そして月と惑星へ

    • URL

      http://www.miz.nao.ac.jp/rise/content/news/topic_20160728

    • Related Report
      2016 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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