Coriolis mass flowmeter (hereinafter referred to as CMF) is a direct mass flow instrument based on the principle of Coriolis force proportional to the mass flow when the fluid flows in the vibrating tube.

Driving factors according to the prediction of the International Energy Agency (IEA), from 2007 to 2030, the world needs to invest $26.0 trillion in energy infrastructure (in 2007 dollars). Among them, the investment in the power industry is US $13.6 trillion, accounting for 52.3% of the total investment. By 2030, the infrastructure of oil, gas and electricity in many parts of the world will need to be replaced.

Electromagnetic flow meters (EMF) is a new type of flow measurement instrument developed rapidly with the development of electronic technology from 1950s to 1960s. Electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow of conductive fluid according to the electromotive force induced when the conductive fluid passes through the external magnetic field.