gas mass flowmeter

 Thermal gas mass flowmeter
Thermal gas mass flowmeter is an instrument that uses the principle of thermal diffusion to measure gas flow. 
The sensor consists of two reference thermal resistors (RTDs).One is the speed sensor RH, - one is the 
temperature sensor RMG which measures the change of gas temperature. When these two RTDs are 
placed in the measured gas, where the sensor RH is heated,Another sensor RMG is used to sense the measured 
gas temperature. As the gas flow rate increases, the airflow removes more heat and the temperature of the sensor RH decreases.



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