Liquid flow meters can be divided into anti-corrosion flow meters, differential pressure flow meters, ammonia flow meters, turbine flow meters, electromagnetic flow meters, vortex flow meters in fluid oscillation flow meters, mass flow meters, and SST insertion flow meters.
According to the measurement object, there are two main categories: closed pipelines and open channels.
According to measurement principles, there are principles of mechanics, thermodynamics, acoustics, electricity, optics, atomic physics, etc.
