标定气体流量计的热力学方法

The Research in Marking Gas Measuring Flowmeter by Thermodynamic Method

本文分析了用热力学原理精确测定喷管流量系数的方法，在此基础上提出了标定气体流量计的喷管装置，并用微机系统进行检测运算。这种装置结构简单、准确可靠。

Accrding to thermodynamics principle this paper has analyzed themethod for accurately nozzel flow coefficient. Based on it we proposed the nozzel deviceof marking gas measuring flowmeter. The device is controlled and calculated by a mini-computer. The device is simple in the construction,accurate and dependable.