密度副基准的量值复现  

ReaIization for the Secondary Standard of Density

作　　者：罗志勇[1] 李占宏[1] 

机构地区：[1]中国计量科学研究院,北京100013

出　　处：《计量学报》2014年第6期591-594,共4页Acta Metrologica Sinica

摘　　要：介绍了静力称量法基本原理、测量装置及测量过程、参数控制。采用静力称量密度量值传递方法实现了从单晶硅球密度到副基准密度计组全部137只浮计的量值复现，并对不同密度段的基准浮计进行了测量不确定度评估。The basic principle, apparatus, procedure and parameters by the method of hydrostatic weighing was introduced. With the hydrostatic weighing, the density dessimination from the solid density primary standard--silicon sphere to the second primary standard--a group of 137 hydrometers has been realized. The measuring uncertainty in full range has been evaluated in detail.

关 键 词：计量学 量值复现 静力称量法 玻璃浮计 固体密度基准 

分 类 号：TB933[一般工业技术—计量学]