Flow Measurements

About Flow Measurements

Flow measurement is extremely important in all the process industries. The manner in which the flow rate is quantified depends on whether the quantity flowing is a solid, liquid or gas. In the case of solids, it is appropriate to measure the rate of mass flow, whereas in the case of liquids and gases, flow is usually measured in terms of the volume flow rate. In a few cases, such as measuring the rate of usage of liquid fuel in a rocket, it is necessary to measure the mass flow rate of a liquid, and special techniques are available for this.

  1. Mass Flow Rate

  2. Volume Flow Rate

  3. Differential Pressure Meters

  4. Orifice Plate

  5. Flow Nozzle

  6. Venturi Tube

  7. Dall Flow Tube

  8. Pitot Tube

  9. Variable Area Flowmeters

  10. Positive-Displacement Flowmeters

  11. Turbine Meters

  12. Electromagnetic Flowmeters

  13. Vortex-Shedding Flowmeters

  14. Gate-Type Meters

  15. Ultrasonic Flowmeters

  16. Doppler Shift Ultrasonic Flowmeter

  17. Transit Time Ultrasonic Flowmeter

  18. Cross-Correlation Flowmeters

  19. Laser Doppler Flowmeter

  20. Intelligent Flowmeters

  21. Choice Between Flowmeters for Particular Applications

Back to Principles of Measurement

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