What Are Flowmeters ?

A flowmeter (or a flow sensor) is type of flow instrument that is used to indicate the amount of liquid, gas, or vapor moving through a pipe or conduit by measuring linear, non-linear, mass, or volumetric flow rates in industrial processes. Since flow control is often essential, measuring the flow of liquids and gasses is a critical need for many industrial applications – and there are many different types of flowmeters that can be utilized depending on the nature of the application.

With most liquid flow measurement instruments, the flow rate is determined inferentially by measuring the liquid’s velocity or the change in kinetic energy. Velocity depends on the pressure differential that is forcing the liquid through a pipe or conduit. Because the pipe’s cross-sectional area is known and remains constant, the average velocity is an indication of the flow rate.

ARC’s analysis of the total flowmeters market reveals that the four flowmeter technologies, Coriolis, ultrasonic, electromagnetic, and vortex, present many benefits over traditional technologies, such as positive displacement, turbine, and differential pressure. These newer technologies continue to replace traditional flowmeters for many applications. 

With the benefits of Industrial IoT (IIoT) becoming evident, suppliers are looking to integrate connected field devices in their portfolios. The focus now is on instrument efficiency, accuracy, safety, and stability. 


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