A magnetic field is applied to the flow tube, resulting in an EMF proportional to the flow velocity passing perpendicular to the magnetic flux lines. The physical principle at work is Faraday's law of electromagnetic induction.
Magnetic flow meter requires a conductive fluid, and electrically insulated internal pipe surfaces to operate.
Advantages:
Advantages:
- Low maintenance cost
- No moving parts
- Good for slurry
- Good for corrosive fluids
- Very linear
- Minimal flow restriction
Disadvantages:
- Requires electrically conductive fluids
