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Flow meters have a wide selection of functions as they are used in nearly every industry also in some laboratories too. A flow meter is a device to measure large fluid movement. There is many techniques employed to measure flow. Considered one of the well-known types of flow meters is the positive displacement flow meter. It basically collects a fixed volume of the fluid then it is going to count the amount of times the volume is filled to sum up the flow. Other folks have a constriction and by measuring the forces produced by the moving stream across the constriction, it will compute the stream indirectly. In cases where we require to employ a flow meter for any application, it is definitely best to purchase a high quality product since it can give long years of unproblematic service.
Some of the uses for flow meters are:
- Manufacturing process.
- To calculate effluent discharge.
- Steam movement
- Oil movement
- Air movement
- Gas flows
- For laboratory use.
- To compute water as well as gas consumption.
- To measure movement of rivers and streams.
- To calculate gas being dispensed.
Most are only a few of the uses. Flow meters have numerous applications and are of the numerous types. The type of flow meter depends upon its practical application. Flow meters can compute in minute quantities and in some large uses they may measure fluid flow in large amounts.
A few of the different types of flow gauge are:
- Piston meter/Rotary piston: These are considered one of the commonest flow meters and are used to measure domestic water utilization.
- Variable area meter: This flow meter is also named a 'rotameter' and consists of a tapered tube with a float inside that is pushed upwards by the fluid flow and downwards by gravity. When the flow rate keeps increasing, the ball moves upwards in the tapered tube till the upward and down forces are in a state of equilibrium. The reading at this point is the flow. It is used mainly to compute flow of water or air and it is accurate up to =/- 1%.
- Turbine flow meter: It obstructs the stream of the liquid only minimally and this design enables measurement of higher flow rates. They are mostly used by large commercial users.
- Some of the other forms of meters are Woltmann meter, Single jet gauge, Paddle wheel meter, multiple jet gauge, Pelton wheel, Oval gas meter, Nutating disk gauge, Current gauge etc.
These are only a few of the many types of flow meters available. Some of the other types are Pressure based meters. They operate on Bernoulli's principle by measuring differential pressure. Venturi meters constrict the flow of the fluid and by utilizing pressure sensors to measure the contrary pressure, before and after constriction, the flow is gauged. The Pitot tube measures the fluid flow by measuring the stagnation pressure and by making use of Bernoulli's equation, the rate of flow is calculated.
Flow meters are ubiquitous and we are certain to encounter a flow meter virtually daily. One of the most common flow meters is the fuel dispenser. The other is our domestic water meter. A flow meter may be manual or electronic, simple or even complicated, but plays important part in our lives either directly or indirectly.
Just simply click on the link and you'll be taken to a site that provides fantastic quality flow meters and data loggers, ranging from air flow meters, water flow meters, ultrasonic meters, and many more, and GPS data loggers, USB data loggers a lot more.
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