空气中双称重法砝码体积测量方法实验研究  

Experimental Study on Volume Determination of Weights by Double Weighting in Air Method

作　　者：苏祎[1] 熊忠琪[1] 郑晓兰[2] 程丽苑 SU Yi;XIONG Zhongqi;ZHENG Xiaolan;CHENG Liyuan(Shanghai Institute of Measurement and Testing Technology,Shanghai 201203,China;Yunnan Institute of Measuring and Testing Technology,Kunming,Yunnan 650228,China)

机构地区：[1]上海市计量测试技术研究院,上海201203 [2]云南省计量测试技术研究院,云南昆明650228

出　　处：《计量学报》2024年第8期1177-1183,共7页Acta Metrologica Sinica

基　　金：上海市2021年“科学技术创新行动计划”自然科学基金面上项目(21ZR1479600)。

摘　　要：以质量1 g~5 kg的标准砝码为对象,开展了空气中双称重法和静水力学法砝码体积测量比对实验研究。提出一种辅助砝码盘的砝码体积测量方法,解决了1~5 g小砝码体积测量不能直接加载到秤盘上的问题。利用Monte Carlo法评定了砝码体积测量的不确定度,结果发现双称重法和静水力学法测得的砝码体积及其不确定度一致性很好,砝码标称质量在1 g~1 kg之间时砝码体积相对不确定度随着标称质量增加而减小,质量超过1 kg时相对不确定度随着标称质量增加而增加。A comparative experimental study was conducted on the volume determination of standard weights with a mass of 1g~5kg,using the double weighing in air method and the hydrostatic method.A method for measuring the volume of auxiliary weight plates was proposed,which solved the problem of small weights ranging from 1g to 5g that cannot be directly loaded onto the scale plate.The uncertainty of weight volume measurement was evaluated by Monte Carlo method,and it was found that the consistency of the weight volume and its uncertainty measured by the double weighing method and hydrostatic method was very good,and the relative uncertainty of the weight volume decreased with the increase of the nominal mass when the nominal mass of the weights was 1g~1kg,and increased with the increase of the nominal mass when the mass was more than 1kg.

关 键 词：质量计量 砝码体积 空气中双称重 静水力学 Monte Carlo 

分 类 号：TB932[一般工业技术—计量学]