Mass flow meter
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Help: How does a mass flow meter measure density? What is the principle behind it?
\"Guide to Flow Meter Applications – Mass Flow Meters\" https://bbs.hcbbs.com/thread-104329-1-1.html (Source: Haichuan Chemical Industry Forum)
Since mass can be calculated from a fixed density, then it’s also possible to calculate density from a fixed flow rate, right?
It’s the Coriolis effect! It is also called the Coriolis force. The mass flow meter is accurate in principle. To determine whether a flow meter is of good quality, one should first examine its measurement principle. Just like orifice plate flow meters and turbine flow meters, no matter how well they are made or how much is promised about their performance! Being behind in principle is useless!
The density measured by the mass flow meter is obtained through the loading of specialized data; it is not measured directly. What is measured directly is the mass flow rate, along with the temperature as well
According to the principle of the Coriolis force, mass is roughly proportional to the phase difference of the particle’s vibration, while density is inversely proportional to the square of the vibration frequency. Both the instantaneous mass flow rate and density can be measured directly; for some gas applications, the volumetric flow rate at standard conditions may be required, which is usually obtained by dividing the mass by the density at standard conditions within a DCS