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켈빈의 재정의

Redefinition of the Kelvin

Journal of the Korean Society for Precision Engineering 2018;35(4):399-404.
Published online: April 1, 2018

1 한국표준과학연구원 물리표준본부

1 Division of Physical Metrology, Korea Research Institute of Standards and Science

#E-mail: iyang@kriss.re.kr, TEL: +82-42-868-5772
• Received: February 14, 2018   • Revised: March 9, 2018   • Accepted: March 12, 2018

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Measurement of triple point of water temperature for improvement of the national standards and key comparison
    Inseok Yang, Young Hee Lee
    JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY.2021; 30(5): 349.     CrossRef

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Redefinition of the Kelvin
J. Korean Soc. Precis. Eng.. 2018;35(4):399-404.   Published online April 1, 2018
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Redefinition of the Kelvin
Image Image Image Image Image Image
Fig. 1 SI illustration prepared by the BIPM for the redefinition of the kelvin and the Boltzmann constant
Fig. 2 The Boltzmann constant determinations used for the final CODATA least square adjustment in 2017. The horizontal solid line represents the adjusted Boltzmann constant with standard uncertainty shown as a shaded band. The error bar for each determination represents standard uncertainty of the determination. (AGT: acoustic gas thermometry, c-AGT: cylindrical AGT, DCGT: dielectric constant gas thermometry)
Fig. 3 Quasi-spherical resonator for acoustic gas thermometry.
Fig. 4 Electromagnetic resonance of TM11 mode for quasi-spherical resonator used for acoustic gas thermometry
Fig. 5 Acoustic resonance of (0, 2) mode for quasi-spherical resonator used for acoustic gas thermometry
Fig. 6 Relationship between thermal energy and thermodynamic temperature. The current definition of the thermodynamic temperature assigns a number to a specific state (triple point of water), whilst the revised definition specifies the conversion factor between the thermal energy and thermodynamic temperature (Boltzmann constant)
Redefinition of the Kelvin