摘要
质量单位千克的重新定义是新世纪计量领域面临的一项挑战,而功率天平是重新定义质量基准的新技术中最有希望的一种。文中介绍了功率天平的工作原理和组成,并简要说明了目前功率天平的研究状况。随着相关技术的发展,有望实现质量自然基准的定义。
Redefinition of kilogram, which is one of the international basic units, has become a new challenge in the field of metrology. The watt balance provides an effective way of realizing the SI mass unit. In this paper, the principle and structure of watt balance are introduced, and current progress on the watt balance in different nations is presented. It is promising to achieve the redefinition of kilogram with the development of relevant technologies.
出处
《机械工程师》
2011年第9期32-33,共2页
Mechanical Engineer
