There are several types of flow meters that operate using different principles: mechanical flow meters, magnetic flow meters which use Faraday's law, vortex flow meters that detect Karman's vortex shedding frequency, ultrasonic flow meters based on transit time measurements, Coriolis flow meters, differential pressure flow meters, and Pitot tube flow meters.

1. Types of the
Flow Meters

3. MechanicalFlow meter

4. MagneticFlow meter
Faraday’s
formula
E = B * L * V

5. Vortex Flow meter
Karman’s
frequency
f = St ( v / d )

6. Ultrasonic Flow meter
Basic
equations
td , tu , Vb ,
C

7. Coriolis FlowMeter

8. DifferentialPressureflow
Meter

9. Pitottube flowMeters

10. Thank you