Flow meters are instruments used to measure the velocity or
speed of liquids and gases. Flow meters find immense use in industries where
there is a need to calculate the velocity of liquids and gases like petroleum industry
or energy generating industry such as wind, water and so on. Flow meters Aare
also essential in construction of dams to calculate velocity of the water.
There are various technologies behind the application and
construction of a flow meter. A flow
meter that uses magnetic energy is called a mag flow meter. It works on a conductor
passing through a field (which is magnetic) where it gets the capacity of
creating voltage in proportion with the velocity of the conductor so as to
regulate the flow of the liquid or gaseous substance.
Following are some advantages and dis advantages of using a
flow meter-
Advantages
- mag flow meters do not get affected by pressure especially with drops in pressure
- They readings are highly accurate and exact.
- It is capable of measuring velocity of any liquid or gaseous substance
- Climatic conditions do not affect the flow meters.
Disadvantages
- Sometimes liquids have to match the conductor's condition even though the flow meter works with every kind of liquid. For instance deionizer water would not work and thus the flow meter cannot show any reading.
- Sometimes accurate results get disrupted when there is space left in pipes. So it is to be made sure in case of liquids such as water, the pipes are filled to rhe brim and thus giving accurate result.
Another common type of flow
meter apart from the above mentioned mag flow meter is low flow meter. It
is capable of measuring linear or non linear mass flow of liquid or gaseous substances.
This type of flow metes are more complex than the mag flow meters and thus
require higher specifications per se. These types of Flow Meter only work with
specific type of liquids or gaseous substances and thus one need to have proper
knowledge about it before making its use. You also need to decipher which kind
of flow needs to be measured before using this type as they flow could be
measured in various methods.
Another common type of flow meter is a vortex flow meter.
This type of a flow mete uses a bluff body in the direction in which the liquid
is flowing. As the fluid passes this body, it would hit and part sideways. The
presence of this creates disruption in the flow which is thus known as
vortices. The vortex then hits the cylinder from sides of the bluff bossy
through which the flow meter Determines the velocity.
One can easily avail a Flow Meter Through online sites like
Countronics which produce standard electronic devices such as timers, meters,
and loggers. They have about 3 types of flow metes each having specifications
to suit diffrent purposes using digital technology and analog representation of
the measure.
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