质量法浮子流量计测量结果的不确定度评定  

Evaluation of Uncertainty in Measurement Results of Float Meter by Mass Method

作　　者：陈雪晶 刁娟 CHEN Xuejing;DIAO Juan(Ningbo Institute of Measurement and Testing,Ningbo 315048,China)

机构地区：[1]宁波市计量测试研究院,浙江宁波315048

出　　处：《电子质量》2024年第8期18-21,共4页Electronics Quality

摘　　要：为对浮子流量计示值误差的测量不确定度进行评定,选用静态质量法水流量标准装置作为标准器,通过对浮子流量计工作原理、检定流程和检定模型的研究,对浮子流量计检定过程中涉及到的变量引入的不确定度进行分析和评定。结合实例,得出了浮子流量计示值误差的不确定度评价结果,验证了所述方法的实用性与可行性,便于对检定、校准结果进行科学评判。In order to evaluate the measurement uncertainty of the indication error of the float flowmeter,the static mass method water flow standard device is selected as the standard,and the uncertainty introduced by the variables involved in the verification process is analyzed and evaluated by studying the working principle,verification process and verification model of the float flowmeter.Combined with an example,the uncertainty evaluation result of the indication error of the float flowmeter is obtained,which verifies the practicability and feasibility of the method and is convenient for scientific evaluation of the verification and calibration results.

关 键 词：浮子流量计 质量法 空气浮力修正 水密度 水流量标准装置 测量模型 

分 类 号：TB937[一般工业技术—计量学]