临界流喷嘴

用临界流喷嘴测量空气流量的湿度修正

Humidity Correction for Measurement of Gas Flow with Critical Nozzles

气体流量传递标准&临界流文丘里喷嘴

Transmision standard of gas flow capacity & critical flow Venturi nozzle

临界流文丘里喷嘴流量计的原理与应用

The principle and application of critical flow Venturi nozzle flowmeter s

临界流文丘里喷嘴在天然气流量上的应用研究和探讨

Application Research on Critical Flow Venturi Nozzles in Natural Gases Flow Measurement

流量测量临界流文丘里喷嘴的进展

Progress of critical flow Venturi nozzle in flow measurement

文本对临界流文丘里喷嘴作为气体流量传递标准的优越性，其流量方程、主要特性参数及在应用中的某些问题进行了介绍和讨论。

The superiority flow , capacity equation . main characteristic parameters and some problems of critical flow Venturi nozzle as transmission standard of gas flow . capacity in application are introduced and discussed in this paper .

简介颁布国际标准ISO9300《临界流文丘里喷嘴测量气体流量》（1990年），十余年来国际上对该流量计的研究情况，主要在以下几方面有显著的进展：雷诺数使用范围的拓宽；

International standard ISO 9300 Gas flow measured by critical flow Venturi nozzle was issued in 1990 . The article introduces the foreign research progress in this field in over ten years past briefly . The main achievements include the following aspects : widening of useful range for Reynolds number ;

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 paper states that using critical flow venturi nozzle as the measuring value transferring standard is the developing orientation of calibration technology of gas meters .