质量单位千克定义的历史、现状和发展趋势

沈乃澂

doi:10.7693/wl20140905

物理

质量单位千克定义的历史、现状和发展趋势

沈乃澂. 2014: 质量单位千克定义的历史、现状和发展趋势, 物理, null(9): 606-612. doi: 10.7693/wl20140905

引用本文:

沈乃澂. 2014: 质量单位千克定义的历史、现状和发展趋势, 物理, null(9): 606-612. doi: 10.7693/wl20140905

SHEN Nai-Cheng. 2014: The history,status and developments in the definition of the kilogram mass unit, Physics, null(9): 606-612. doi: 10.7693/wl20140905

Citation:

SHEN Nai-Cheng. 2014: The history,status and developments in the definition of the kilogram mass unit, Physics, null(9): 606-612. doi: 10.7693/wl20140905

质量单位千克定义的历史、现状和发展趋势

沈乃澂

中国计量科学研究院北京 100029

通讯作者: 沈乃澂

The history,status and developments in the definition of the kilogram mass unit

SHEN Nai-Cheng

Corresponding author: SHEN Nai-Cheng

摘要: 自1889年以来，千克的国际原器作为国际单位制(SI)质量单位的定义。这是SI定义基本单位最后一个人工制造的基准，它的重新定义必将影响着几个其他基本单位。文章介绍了瓦特天平的工作原理以及普朗克常数的实验测定。这些结果对物理学和计量学具有重要的意义。
- 千克国际原器 /
- 普朗克常数 /
- 瓦特天平实验 /
- 物理学和计量学
Abstract: Since 1889, the international prototype of the kilogram has served as the definition of the unit of mass in the International System of Units (SI). It is the last man-made standard to be used to define a basic SI unit, and its redefinition will influence several other base units. This paper describes the principle of the watt balance and the experimental determination of Planck's constant. These results are of great significance for physics and metrology.