摘要
质量实物基准是所有基本量中唯一的实物基准,其缺点是容易受到环境的影响而造成质量的改变。总结了国内外计量院所对砝码表面状态预测方面的研究动向,指出了各国计量院所开展砝码表面状态预测研究的方向,包括:分析质量标准在"空气"和"真空"条件下传递时对质量标准造成的影响,建立砝码质量观测模型及吸附修正模型等。对砝码表面状态的研究和吸附修正技术的研究,最终可以提高质量测量的准确度,为即将到来的质量单位的重新定义研究打下技术基础。
The mass benchmark is the only real benchmark among all fundamental physical SI units, and the drawback is that it＇s easy to be affected by the environment, resulting in the change of the mass value. In this paper, recent research progresses at home and abroad on the surface status predication are summarized and the prediction research method on the surface status prediction of weights in institutes home and abroad is presented, including the influence analysis on the mass standards during transferring from vacuum to air and establishment the mass observation model and absorption correction model,etc. Through the research on the surface status of weights and absorption correction technology, the mass measurement accuracy can be ulti- mately enhanced, which lays a technical foundation for the upcoming redefinition of mass units＂ research.
出处
《河北科技大学学报》
CAS
2015年第3期247-250,共4页
Journal of Hebei University of Science and Technology
基金
国家自然科学基金(51405459)
国家科技支撑计划项目(2011BAK15B06)
国家重大科学仪器设备开发专项(2012YQ090208)
中国计量科学研究院科研项目(AKY1314
JB1402)
关键词
计量学
结合能状态预测模型
表面吸附
测量不确定度
质量修正方法
体积测量
metrology
binding energy status prediction model
surface adsorption
measurement uncertainty
mass correctionmethod
volume measurement
