About mass flow rate measurement
Measurement of the mass flow rate of solids in the process industries is normally concerned with solids which are in the form of small particles produced by a crushing or grinding process. Such materials are usually transported by some form of conveyor, and this allows the mass flow rate to be calculated in terms of the mass of the material on a given length of conveyor multiplied by the speed of the conveyor.
The mass flow rate of a fluid is usually determined by simultaneous measurement of the volume flow rate and the fluid density, although a recently available alternative is the Coriolis meter. As the measurement of the mass flow rate of fluids is not a common requirement, the instruments suitable for this are not well covered.