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Precise Liquid Flow Measurement and Instrumentation in Divergent Arenas The tools that are used to determine the rate of flow of fluid, which is either flowing through a pipe or an open channel, are called flow meters. The flow meters are used in various fields to determine the flow rate & leakage, to regulate the flow, indicate the extremely high or low flow, etc. The liquid flow meter and instrumentation are used in different industries based on the different engineering requirements, and it can also be termed as liquid meter, flow indicator, flow gauge, etc. though the application remains the same.
Precision Flow Meter & its Types The flow meter precisely monitors the flow rate and may provide a visual or proportional output signal to indicate the rate. In specific industries, like the aerospace industry, the determination of the volume of the liquid flowing through a conduit should be accurate whereas, in some applications like in a vineyard, only 5 to10 percent volume accuracy is needed. There are various types of flow meters depending on the various mediums through which it is flowing. They are mainly categorized into two mediums. Open channel and closed conduit. •
Open channel flow- This type of flow has a free surface and is not constricted by any pipe. Its movement is regulated by the force of gravity. Flows in the vented pipelines like a sewer, and in canals are the typical examples. It can further be divided into Flumes and Weirs.