The metering of natural gas still presently depends on orifice flowmeter, one of differential pressure flowmeters.
天然气计量现在仍以差压式流量计中的孔板流量计为主。
In this thesis, the first part is to design a differential pressure (DP) flowmeter.
本课题第一部分的任务是设计一种差压式流量计的差压发生器。
Elbow flowmeter is one version of differential pressure flowmeters.
弯管流量计是差压法流量计的一种。
Therefor, using the dual bluff body configuration and the differential sensing technique, a novel prototype of vortex flowmeter with excellent noise immunity and improved sensibility was developed.
采用双钝体组合结构和差动传感技术，能够研制出抗干扰性能良好和高灵敏度的新型涡街流量计。
On the basis of a measurement principle transforming 'differential pressure into the flow rate, a flowmeter is made on trial.
我们根据从差压信号推算流量的原理，试制了一个非定常流量计。
A new-type 1/4 circular stopper differential pressure flowmeter is designed.
因此，本文设计了一种1/4圆形挡块式流量计。
The uniform speed ring flowmeter has high accuracy, large output differential pressure, uneasy plugging and insensitive current direction.
准确度高，输出压差大，不易堵塞，对流向不敏感。
The uniform speed ring flowmeter has high accuracy, large output differential pressure, uneasy plugging and insensitive current direction.
准确度高，输出压差大，不易堵塞，对流向不敏感。
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