摘要
压力变送器广泛应用于工业过程中压力、流量、液位等工艺参数的测量。为了便于生产,多数情况下压力变送器的检定需要在现场进行在线检测。为了提高测量精度,该文分析了影响检测的各种因素,依据压力变送器的检定规程,通过实例对现场检定条件进行了不确定度的分析。
Pressure transmitter was widely used in measuring various parameters in industrial processes,such as pressure,flow,liquid level etc. In most cases,the pressure transmitter test requires online testing in the field production. In order to improve the measurement accuracy,in this paper,study the various factors affecting measurement,and analysis the uncertainty through some practical field conditions according to verification regulations of the pressure transmitter.
出处
《自动化与仪表》
2015年第5期73-76,共4页
Automation & Instrumentation
基金
2014年度甘肃省教育科学规划项目(GS〔2014〕GHB0326)
关键词
测量
不确定度
自由度
误差
measurement
uncertainty
degrees of freedom
error
