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Development of viscosity standard with Electro-Magnetically Spinning System

Research Project

Project/Area Number 26600132
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field General applied physics
Research InstitutionThe University of Tokyo

Principal Investigator

Sakai Keiji  東京大学, 生産技術研究所, 教授 (00215584)

Co-Investigator(Renkei-kenkyūsha) MITANI Syujiro  東京大学, 生産技術研究所, 助教 (10334369)
HIRANO Taichi  東京大学, 生産技術研究所, 技術職員 (00401282)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsレオロジー / 粘性 / 弾性 / 標準 / 気体 / 電磁スピニング / 粘性測定 / 粘度標準 / 電磁スピニングシステム / 粘弾性
Outline of Final Research Achievements

We developed a new measurement system of gas viscosity employing a magnetically levitated disk probe. From the results of the relation between the applied torque and the rotational speed of the disk prove obtained for various kinds of gases, we successfully found that the f gases can be distinguished by their viscosity. For more accurate measurement, we examined the braking effect brought about by the inhomogeneity of the static magnetic field applied for the levitation. We then measured the gas viscosity at low pressures using the high vacuum chamber, where the apparent gas viscosity decreases due to the decrease of the carrier molecules of momentum. The achieved value of the lowest viscosity is 1/100,000 of that of the pure water, which is in principle the possible accuracy of the viscosity measurement.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (13 results)

All 2017 2016 2015 2014 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results) Remarks (4 results)

  • [Journal Article] Accurate and fast creep test for viscoelastic fluids using disk-probe-type and quadrupole-arrangement-type electromagnetically spinning systems2017

    • Author(s)
      T. Hirano and K. Sakai
    • Journal Title

      Appl. Phys. Express

      Volume: 10 Issue: 7 Pages: 0766021-4

    • DOI

      10.7567/apex.10.076602

    • NAID

      210000135932

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simple and accurate determination of sol-gel phase transition point using disk-type electromagnetically spinning viscosity measurement system2017

    • Author(s)
      T. Hirano and K. Sakai
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 印刷中

    • NAID

      210000148024

    • Related Report
      2016 Research-status Report
  • [Journal Article] Measurement of human blood viscosity by an electromagnetic spinning sphere viscometer2016

    • Author(s)
      K. Furukawa, T. Abumiya, K. Sakai, M. Hirano, T. Osanai, H. Shichinohe, N. Nakayama, K.Kazumata, T.Aida, K. Houkin
    • Journal Title

      Journal of Medical Engineering & Technology

      Volume: in press

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electromagnetically revolving sphere viscometer2014

    • Author(s)
      Maiko Hosoda and Keiji Sakai
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 53 Issue: 12 Pages: 1-4

    • DOI

      10.7567/jjap.53.126602

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Measurement of two-dimensional viscosity of liquid surface by electro-magnetically spinning system2017

    • Author(s)
      K. Sakai, M. Hosoda*, and T. Hirano
    • Organizer
      The Society of Rheology 88th Annual Meeting
    • Place of Presentation
      Florida, US
    • Year and Date
      2017-02-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rheological measurement system using disk-type electromagnetically spinning technique2017

    • Author(s)
      T. Hirano and K. Sakai
    • Organizer
      The Society of Rheology 88th Annual Meeting
    • Place of Presentation
      Florida, US
    • Year and Date
      2017-02-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 液面浮上型ディスクEMSシステムにおける流動抵抗トルクの解析2016

    • Author(s)
      平野太一,松浦有祐,平野美希,酒井啓司
    • Organizer
      超音波研究会
    • Place of Presentation
      関西大学(大阪)
    • Year and Date
      2016-01-28
    • Related Report
      2015 Research-status Report
  • [Presentation] EMS法を用いた極低トルク/ずり流動下での複素弾性率測定2015

    • Author(s)
      平野太一,酒井啓司
    • Organizer
      超音波研究会
    • Place of Presentation
      同志社大学 今出川キャンパス
    • Year and Date
      2015-01-28 – 2015-01-29
    • Related Report
      2014 Research-status Report
  • [Presentation] Evaluation of 2D viscosity with Disk-type EMS method2014

    • Author(s)
      M. Hosoda, T. Fujimoto, Y. Shimokawa, T. Hirano, and K. Saka
    • Organizer
      The 35th Symposium on UltraSonic Electronics
    • Place of Presentation
      Meiji University, Tokyo
    • Year and Date
      2014-12-03 – 2014-12-05
    • Related Report
      2014 Research-status Report
  • [Remarks] http://sakailab.iis.u-tokyo.ac.jp/

    • Related Report
      2017 Annual Research Report
  • [Remarks] http://sakailab.iis.u-tokyo.ac.jp/

    • Related Report
      2016 Research-status Report
  • [Remarks] 酒井研ホームページ

    • URL

      http://sakailab.iis.u-tokyo.ac.jp/index.html

    • Related Report
      2015 Research-status Report
  • [Remarks] http://sakailab.iis.u-tokyo.ac.jp/index.html

    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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