科里奥利质量流量计在线连续测量流体密度的理论分析

Theoretical Analysis of Coriolis Mass Flow Meter for on Line Continual Determination of Fluid Density

科里奥利质量流量计是一种直接测量流体质量流量的仪表 ,同时可在线检测流体密度 ,出于对其传感器结构优化设计的目的 ,建立了振动微分方程 ,其解可给出流体密度在线检测的依据 ,并给出密度与温度的对应关系 ,得出双 U型管谐振频率的推导结果 ,并进行具体计算的验证。

The mass flow-rate and fluid density can be on line measured directly by Coriolis Mass flow meter in the same time. This paper gives a differential equation of the sensor vibration and derives optimal design of the sensor. As the result of derivative vibration frequency for the dual U-type tubes determined the density of the fluid.