Generation and measurement technology of microforce applying the principle of Kibble balance method

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K15008
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 21030:Measurement engineering-related
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Zhu Junfang (朱俊方) 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, 研究員 (70805134)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: 微小力 / 微小力計 / 力計測 / キッブルバランス / 電磁力 / 精密計測 / 力計測技術 / 力発生技術

Outline of Final Research Achievements

In this research, we aim to develop a precise microforce generation technology and measurement technology by electromagnetic force that applies the principle of the kibble balance method for improving the reliability of microforce measurement. In 2019, we proposed a new method based on the principle of the kibble balance and developed a microforce generating machine using the rotational motion type electromagnetic force of a pair of neodymium magnets. In 2020, using the developed machine and a microforce transducer, we conducted measurement experiments in the induced electromotive force measurement and the force generation modes, which are in the proposed method. We confirmed that is possible to generate and measure precise microforce by electromagnetic force using our developed machine.

Free Research Field

計測工学

Academic Significance and Societal Importance of the Research Achievements

本研究では、重力の利用が困難である微小力領域において、電磁相互作用で生じる電磁力により精密な力を発生・計測できることを検証した。その研究成果は、将来的に国内外での幅広い産業利用が期待できる。例えば、医療・食品、バイオテクノロジー、ナノ物質・材料等の幅広い分野で行われている微小力計測の信頼性向上ことに貢献できる。また、重力によらない微小力の発生ができるため、宇宙ステーションのような無重力状態でも力の発生・計測への応用が可能であると考えられる。