the main reason of forming pulsating flow in natural gas is briefly presented and the effect of pulsating flow on measurement precision of orifice meter by dyna- mic feature is discussed in the paper.
本文简要介绍形成天然气脉动流的主要原因,并从流量计的动态特性讨论脉动流对孔板流量计测量精度的影响;
the on the spot inspection of natural gas orifice meter is adopting the transitivity calibration method taking venturi nozzle as calibration scale.