用铂膜电阻作为感温元件，研制了气体质量流量计，并给出试验结果。
With Pt film resistor used as the temperature sensors, a mass flowmeter for gases is developed and the test result is also given.
介绍了气体质量流量计的特点，并对其工作原理和安装也作了详细的阐述。
The characteristic of gas mass flow meter is introduced. The flow sensing principle and the installation of this flow meter are also described.
并应用音速喷咀对涡轮流量计、腰轮流量计和密度补偿式孔板气体质量流量计进行标定。
The sonic nozzle is used to calibrate turbine flowmeters, Roots flowmeters, and density compensated orifice gas mass flowmeters.
所述的掺杂气体控制部分包气体保护部分使用的氩气、氮气的气体质量流量计及掺杂箱部分；
Said doping gas control part includes a gas quality flowmeter (of argon and azote) used by a gas protect part, and a doping case part.
介绍了一种利用检测漩涡频率和横向变动升力的方法测量气体质量流量的漩涡式气体质量流量计。
The paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force.
应用热式质量流量计直接测量气体质量流量。
Applying thermal mass flowmeter to measure gas mass flow directly.
应用热式质量流量计直接测量气体质量流量。
Applying thermal mass flowmeter to measure gas mass flow directly.
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