Experimental results indicated that maximum error of slotted orifice is less than 5%. The conclusion is available to the development of slotted orificemeter.
实验结果表明槽式孔板测量误差小于5%，研究结果对槽式孔板流量计的开发具有一定借鉴意义。
2
The paper introduces calculating method of energy consumpation caused by flowmeters, such as orifice flow meter, vortex flow meter, and illustrates magnitude of energy consumpation with examples.
介绍了孔板、涡街流量计测量不同流体时引起的能耗量的计算方法，举例说明了能耗量的大小。
3
The on the spot inspection of natural gas orificemeter is adopting the transitivity calibration method taking Venturi nozzle as calibration scale.