The Coriolis effect, abbreviated as Coriolis force, is a description of the displacement of a particle undergoing linear motion in a rotating system due to inertia relative to the linear motion of the rotating system. A mass flowmeter is a typical application of Coriolis force, which allows the fluid being measured to pass through a vibrating measuring tube. The flow of the fluid in the pipeline is equivalent to linear motion, and the vibration of the measuring tube produces an angular velocity. Since the vibration is driven by an external electromagnetic field and has a fixed frequency, the Coriolis force that the fluid experiences in the pipeline is only related to its mass and velocity. The product of mass and velocity, that is, the flow velocity, is the mass flow rate that needs to be measured. Therefore, by measuring the Coriolis force that the fluid experiences in the pipeline, its mass flow rate can be measured.