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Electromagnetic flow meter

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Basic idea and principle of electromagnetic flow meter.

Basic idea and principle of electromagnetic flow meter.

Published in: Education, Technology, Business
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  • 1. IN THE NAME OF THE MOST GRACIOUS THE MOST MERCIFUL
  • 2. Presented By:
    • Rameez Ahmad Mughal
    • BEC-01091032
  • 3. ElectroMagnetic Flow Meter Topic:
  • 4. Introduction
    • A  Electromagnetic flow meter  is a volumetric flow meter which does not have any moving parts and is ideal for wastewater applications or any dirty liquid which is conductive  or water based. 
  • 5. Working Principle
    • The operation of a  Electromagnetic flow meter  or magmeter is based upon Faraday's Law , which states that:
    • “ The voltage induced across a conductor as it moves at right angles through the magnetic field is proportional to the velocity of that conductor.”
  • 6. Faraday’s Formula
    • E  is proportional to  V  x  B  x  D
    • where: E  = The voltage generated in a conductor V  = The velocity of the conductor B  = The magnetic field strength D  = The length of the conductor
    • (which in this instance is the distance between the electrodes)
  • 7.
    • ElectroMagnetic flowmeter use Faraday's Law of Electromagnetic Induction to determine the flow of liquid in a pipe. In a magnetic flowmeter, a magnetic field is generated and channeled into the liquid flowing through the pipe. Following Faraday's Law, flow of a conductive liquid through the magnetic field will cause a voltage signal to be sensed by electrodes located on the flow tube walls.
  • 8.  
  • 9.  
  • 10. Uses…
    • Pipelines...
    • Refineries...
  • 11. Advantages & Disadvantage
    • Advantages:
    • Minimum obstruction in the flow path yields minimum pressure drop.
    • It can measure forward as well as reverse flow with equal accuracy.
    • Low maintenance cost because of no moving parts.
    • corrosive or slurry fluid flow.
    • Disadvantage:
    • Requires electrical conductivity of fluid.
  • 12. Types of ElectroMagnetic Flow Meters
  • 13. Questions?

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