Thermal mass flowmeter (abbreviated as TMF) is a instrument that uses heat transfer principle to detect flow, that is, to measure the flow rate by using the heat exchange relationship between flowing fluid and heat source.
The mass flowmeter in the industrial application has 2 kinds, 1 kinds of "Coriolis mass flowmeter" referred to as "CMF" is also called "Coriolis force" principle is: rely on the fluid flow and the measurement principle of pipe vibration and the interaction between the two, the density can also be from the measuring tube vibration is derived, with temperature measurement of "CMF" as a high precision instrument flow in the field of a new technology for direct measurement of mass flow has been gradually accepted by the users at the beginning of twenty-first Century, "CMF" has 500 thousand units in a wide range of applications: can be used for general industrial medium flow meter is difficult to measure, either conductive or non-conductive liquids can be the measurement, such as non Newtonian fluid, slurry, suspension, liquefied gas.
Based on the Coriolis mass flowmeter, T type vibration sensor in two parallel tubes, central driving coil is arranged at both ends with pick-up coil, mass flowmeter, direct measurement of mass flow rate through the flow of medium, but also can measure the density of the medium and the indirect measurement of the medium temperature. Mass flowmeter is an important flow measuring instrument. Mass flow meters are measured by sensible heat.
