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Precise Measurement of Themodynamic Temperature Based on Johnson Noise Thermometry Using Integrated Quantum Voltage Noise Source

Research Project

Project/Area Number 17K05113
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General applied physics
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Urano Chiharu  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 (30356589)

Co-Investigator(Kenkyū-buntansha) 山田 隆宏  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 主任研究員 (00377871)
中野 享  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 (20357643)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords熱力学温度 / 熱雑音 / ナイキストの関係 / ジョセフソン効果 / 量子電圧雑音源 / 温度標準 / SI単位 / 超伝導 / ジョセフソン接合 / ナイキストの式 / ジョセフソン接合 / 基礎物理定数 / ボルツマン定数 / ジョンソン・ナイキストの式 / 超精密計測 / 超伝導材料・素子 / 計測工学
Outline of Final Research Achievements

A part of the design of an integrated quantum voltage noise source IQVNS is improved so that the power spectrum density of the output signal of IQVNS which is the reference signal source of the Johnson noise temperature measurement system, can be changed. As a result, it was confirmed by experiments that IQVNS can be used as a reference signal source for thermodynamic temperature measurement in a wide temperature range by rewriting the value of the register on the IQVNS from an electronic circuit placed at room temperature.
We measured the thermodynamic temperature of the melting point of gallium using a Johnson noise thermometer based on IQVNS and evaluated the difference from the value of 1990 international temperature scale.

Academic Significance and Societal Importance of the Research Achievements

近年の科学技術の進展に伴い、実用的なITS-90と普遍的な熱力学温度値との差異が明らかになりつつある。熱力学温度と実用される目盛との乖離は科学として不自然であるため、基礎データを蓄積した上でこれらが一致する方向への改訂を提案すべきである。本提案によるこれらの課題の解決は、科学・産業の基盤である精密温度計測の高度化、将来的には、本システムを発展させて、熱力学温度を実用的に測定できる温度計の開発につながると考えている。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 2017

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

  • [Journal Article] Measurement of the Melting Point of Gallium Using a Johnson Noise Thermometer2020

    • Author(s)
      Chiharu Urano, Kazuaki Yamazawa, Nobu-Hisa Kaneko
    • Journal Title

      IEEE Transactions on Instrumentation and Measurement

      Volume: 69 Issue: 6 Pages: 3698-3703

    • DOI

      10.1109/tim.2019.2937424

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of Melting Point of Gallium by Johnson Noise Thermometer Using Integrated Quantum Voltage Noise Source2018

    • Author(s)
      Chiharu Urano ; Kazuaki Yamazawa ; Nobu-Hisa Kaneko
    • Journal Title

      Digest of 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018)

      Volume: - Pages: 1-2

    • DOI

      10.1109/cpem.2018.8501236

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Measurement of the Boltzmann constant by Johnson noise thermometry using a superconducting integrated circuit2017

    • Author(s)
      C. Urano, K. Yamazawa and N-H Kaneko
    • Journal Title

      Metrologia

      Volume: 54 Issue: 6 Pages: 847-855

    • DOI

      10.1088/1681-7575/aa7cdd

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Measuring the Boltzmann’s constant using superconducting integrated circuit2017

    • Author(s)
      C. Urano, Yamada T, Maezawa M, Yamazawa K and Kaneko N-H
    • Journal Title

      IEEE Transactions on Instrumentation and Measurements

      Volume: 66 Issue: 6 Pages: 1323-1328

    • DOI

      10.1109/tim.2016.2637598

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Development of Programmable Integrated Quantum Voltage Noise Source2019

    • Author(s)
      浦野 千春, 入松川 知也, 山田 隆宏
    • Organizer
      International Superconductive Electronics Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical Pulse-Driven Integrated Quantum Voltage Noise Source for Johnson Noise Thermometer2019

    • Author(s)
      浦野 千春, 入松川 知也, 山田 隆宏
    • Organizer
      The 32nd International Symposium on Superconductivity
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurement of Melting Point of Gallium by Johnson Noise Thermometer Using Integrated Quantum Voltage Noise Source2018

    • Author(s)
      Chiharu Urano ; Kazuaki Yamazawa ; Nobu-Hisa Kaneko
    • Organizer
      2018 Conference on Precision Electromagnetic Measurements (CPEM 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Uncertainty analysis of the Boltzmann constant measured by Johnson noise thermometry using superconducting integrated circuit2017

    • Author(s)
      C. Urano, K. Yamazawa, N-H. Kaneko
    • Organizer
      30th International Symposium on Superconductivity 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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