利用动量变化率测量流体质量流量方法的研究

Fluid Mass Flow Measurement Using the Momentum Principle

提出了一种通过检测流体动量变化率实现其对质量流量测量的新方法．该方法在垂直于流体流动方向上利用激振器激振流体，在流动下游利用检测传感器测量流体动量变化率，从而完成对流体质量流量的测量．实验研究表明，采用该方法可获得流体质量流量呈线性关系的输出电信号，与所进行的理论分析相一致．

A method is presented for measuring mass flow by detecting the fluid momentum rate. Fluid is vibrated perpendicular to fluid flow by an oscillator while mass flow is measured by momentum rate down stream. The experiments indicate that the electrical signal output varies linearly with mass flow. The effects of amplitude on the character of the output signal are also discussed.