摘要
介绍了一种大流量气溶胶采样器在线校准装置,阐述了其工作原理、测量方法、技术指标和功能。基于文丘里双差压超声气体流量测量原理,克服了单一种类流量计流量量程比小的问题,可将量程比扩大到1 40甚至更高,具有准确度高,压力损失小,体积小、携带方便等特点。
An on-line calibration device for large flow aerosol sampler is introduced,Its working principle, measuring method, technical index and function are described.Principle of Venturi double differential pressure ultrasound gas flow measurement, it overcomes the problem of small flow range ratio of single type flowmeter,the range ratio can be extended to 1 40 or even higher,it has the characteristics of high accuracy, small pressure loss, small volume and easy to carry.
作者
万丽芬
桑晓鸣
高振华
尹彦臻
何成
WAN Li-fen;SANG Xiao-ming;GAO Zhen-hua;YIN Yan-zhen;HE Cheng(Hubei Institute of Measurement and Testing Technology, Wuhan, Hubei 430223, China)
出处
《计量学报》
CSCD
北大核心
2018年第B12期98-100,共3页
Acta Metrologica Sinica
关键词
计量学
气溶胶采样器
文丘里双差压超声气体流量
环境监测
metrology
aerosol sampler
Venturi double differential pressure ultrasound gas flow
environmental monitoring
