钟罩式气体流量标准装置测量结果的特性分析  

Characteristic Analysis of the Measurement Result of Bell Gas Flow Standard Equipment

作　　者：雷镇嘉 王杰 

机构地区：[1]新疆维吾尔自治区计量测试研究院,乌鲁木齐市830011

出　　处：《仪器仪表标准化与计量》2017年第5期37-39,共3页Instrument Standardization & Metrology

摘　　要：气体流量标准装置近几年的应用越来越广泛,但大都采用的是负压进气法,这和采用供气的流量计结算的存在一定的误差,因此采用正压法检定流量计的准确性有一定的依据,本文就采用正压法的钟罩式装置在溯源过程中的多个影响量进行分析,对提高其精度有一定的指导意义。Gas flow standard devices in recent years, more and more widely used, but most of the use of negative pressure air intake method, and the use of gas flow meter settlement there is a certain error, so the use of positive pressure flow meter accuracy This paper will analyze the influence of the bell-type device using the positive pressure method in the process of traceability, and it has some guiding significance to improve its accuracy.

关 键 词：正压法 钟罩 气体流量标准装置 测量结果 不确定度 

分 类 号：TH814[机械工程—仪器科学与技术]