Fundamentals of Flow Measurement

An accurate and reliable fluid flow measurement is essential in any manufacturing process. Without it, it would be impossible to control or optimize the process. There are a variety of different technologies and devices that can be used for flow measurement, each with its own advantages and disadvantages.

The most important thing is to choose the right technology for the specific application. In this article, we will provide you an overview of the most common types of flow measurement devices and how they work.

Positive Displacement Flow Metres:

Positive displacement flow metres are widely used in industrial applications for their robustness and reliability. They have no moving parts and are, therefore, able to withstand high pressures without mechanical damage. The principle behind positive displacement metres relies on increasing or decreasing the volume inside a vessel through an increase or decrease in pressure applied to one side of that container.

 Velocity Flow Metres:

Velocity flow metres measure the speed at which fluid passes through the pipe or tube by detecting changes in pressure along its length. The velocity can then be calculated from these changes in pressure. Pressure sensors are typically located at regular intervals along the pipe or tube, so their readings can be averaged together to calculate an average velocity over time.

 Open Channel Flow Metres:

Open channel flow metres use a pressure differential to determine the flow rate of a fluid travelling through an open channel. The difference in pressure between two points along the flow path is directly proportional to the volume flowing through it per unit of time. Because there is no physical contact between any part of the metre and the fluid being measured, gas flow measurements, these types of metres are also referred to as non-contact and no i touch with employees.

 Mass Flow Metres:

These metres can measure the mass of a substance flowing through a pipe or duct. They are usually installed at the outlet of a vessel or tank so that they measure the total amount of liquid that has been emptied from it during a given period.

Conclusion:

In conclusion, accurate and reliable fluid flow measurement is essential for any manufacturing process. There are a variety of different technologies and devices that can be used for flow measurement, each with its own advantages and disadvantages. The most important thing is to choose the right technology for the specific application.