喷嘴流量计是测量流量的差压发生装置，配合各种差压计或差压变送器可测量管道中各种流体的流量。标准喷嘴节流装置与差压变送器配套使用，可测量液体、蒸汽、气体的流量，广泛应用于石油、化工、冶金、电力、轻工等部门。
同时还提出了一个简化的气液同轴式喷嘴流量计算模型。
A simplified theoretical model is developed to calculate the flowrates of gas-liquid coaxial atomizers. The comparison between the theoretical and experimental results shows a reasonable agreement.
天然气孔板流量计的现场检定，采用以文丘里音速喷嘴作为标准表的传递型校准法。
The on the spot inspection of natural gas orifice meter is adopting the transitivity calibration method taking Venturi nozzle as calibration scale.
本文叙述了用音速喷嘴在线标定差压式天然气流量计。
This article describes on line proving of natural gas flow meters by using sound speed nozzles.
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