Gas Mass Flow Meter: Working Principle and Application
Sun, Nov 6, 2022
The gas mass flow meter is an instrument that measures the flow of gas using the principle of thermal dispersion. The sensor consists of two reference-level RTDs (thermal resistance devices). One is a velocity sensor RH and the other is a temperature sensor RMG that measures the change in gas temperature. when these two RTDs are placed in the gas being measured, one of the sensors RH is heated and the other sensor RMG is used to sense the temperature of the gas being measured. As the gas flow rate increases, the gas stream takes away more heat, and the temperature of sensor RH decreases.
