Flowmeter Types And Applications
Flowmeters are used in many ways but their basic aim is to measure the flow of a particular substance passing through a tube, pipe or chamber. Why would you want to do this ?
Well, the main reason is to give you information about how a machine is operating or whether it is running efficiently. This goes for the human body or a large machine you might find in a factory. this article will cover the basic flowmeter types and explain what they are used for.
Peak flow meters are used to determine the flow rate of air running through the meter. These types of flowmeter are often used to work out how fit a person is. They tell the person what sort of lung capacity they have. With this information a fitness consultant can set an exercise program that is suitable.
with this said, you will find that peak flowmeters are generally used to diagnose asthma. Once the condition is diagnosed, the meter is also used to manage it.
A peak flow meter works on the principal of displacement as a correlation of flow rate. Within the peak flow tube is a float. This is moved by the force of the air flowing past it. This movement is measured and gives an indication of the flow rate of the substance passing through the tube.
You will find many applications in business, particularly water management, where effluent, drain and drinking water need to be monitored. A flowmeter is also found in various high tech. industries like semi conductor manufacture, where accurate amounts of gas have to be applied at a specific stage of the manufacturing process.
To illustrate this point more clearly, food processing is largely automated. Machines process numerous ingredients to come up with a favorite spread, cereal or snack. It is imperative that the exact amounts of all these ingredients is right and to the recipe or the foods will taste bad or could even be harmful. A flow meter can give a human operator this information. It can also tell the operator if the machine is working correctly.
In these industries you will find all types of flowmeters. I will list a few of them here and how they work. The most popular types are the ultrasonic and thermal dispersion flowmeters. They can measure the flow rates of liquids, gases and liquids with stuff in it.
The ultrasonic flow meter uses the physics of waves to correlate the flow rate of a particular substance that the wave is passing through.
Wave theory is also used in the Doppler shift flowmeter. This type of flowmeter is used to measure the flow rate of liquids with matter in them. It is used in water and waster water management.
Thermal dispersion has a similar idea except that it uses the change in heat from a particular heat source located within the pipe or tube. The change in heat will be directly related to the flow rate of the gas or liquid that is passing this heat source.
There are various other types of flowmeter, including the turbine, wheel and magnetic flowmeters, They are mainly used in industry and determine the flow of a material and if the machine is working correctly. For instance, in a machine that is powered hydraulically, a sudden lose in pressure will indicate that there is a problem. a flowmeter can help to determine where the problem is.
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