Abstract:
An Intelligent Thermal Gas Mass Flowmeter (ITGMF) is developed on the basis of the analysis of mechanism of thermal gas massflow sensors. Data processing is carried out with an advanced single-chip Intel 8031 microcomputer. Some problems caused by inherent nonlinearity, temperature drift etc., which exist in thermal gas mass flowmeters, are solved well so as to have measurement accuracy greatly improved. The main performance index of the ITGMF comes up to the level of similar products at world markets in 80's.