There are 10 main technologies used to measure flow. Suppliers find themselves competing with other companies making the same type of flowmeter and with suppliers making different types of flowmeters. Thus, the flowmeter market has a built-in complexity that some other instrumentation markets lack. While technology distinguished flowmeters, so does the modernity of that technology. New-technology flowmeters include those using Coriolis, magnetic, ultrasonic, vortex, and multivariable differential pressure (dP) technologies.
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