摘要
首先阐述了煤气准确计量的意义及国际法制计量组织(OIML)于l995年对标定设备准确度提出的规定;接着分析了我国家用煤气表标定装置的现状,介绍了新型家用煤气表标定装置的技术指标与功能特性;最后指出,采用临界流文丘利喷嘴作为量值传递标准是煤气表标定技术的发展方向.
The significance of accurate gas metering and the regulations stated by the international organisation (OLML) in 1995 for enhancing the accuracy of calibration are described. The current status of the calibration devices for domestic gas meters is analysed and the specification and functional features of the novel calibration devices are introduced. The paper states that using critical flow venturi nozzle as the measuring value transferring standard is the developing orientation of calibration technology of gas meters.
出处
《自动化仪表》
CAS
北大核心
1998年第5期13-14,共2页
Process Automation Instrumentation
