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 flowmeter is designed to work like many types of flowmeter. It uses a displacement method to determine the flow rate. The displacement method is simply a movable float inside the tube. When air is blown in the tube the float is displaced. The amount that it moves is an indication of the air flow rate.

In many industries, like HVAC, food processing, water management, industrial and chemical manufacturing there are needs to measure the flow of various gases and liquids through large or small machinery.

For instance, the production of many processed foods is largely automated. There may be a human operator that needs tools like a flowmeter to check that the right amounts of various ingredients are going into the machine. If the wrong quantities are used the food does not taste right or may have to be recalled.

There are a variety of types of flowmeters that operate in these industries. Two common varieties are the thermal dispersion and ultrasonic flowmeters. They can work out the flow rate of both liquids and gases.

An ultrasonic flowmeter uses an ultrasonic wave or waves to determine the flow rate. It applies our understanding of wave dynamics to determine the flow rate of the substance 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 uses the way heat disperses from a fixed point to correlate the flow rate of the substances passing that fixed point. The change is the heat is directly proportional to the flow rate of the gas or liquid passing it.

Other types of flowmeter include the turbine, magnetic and wheel flowmeters. Again, these devices have applications in many larger scale industrial complexes to ensure that a particular machine is working correctly or is getting the right quantity of a particular substance.