Design and Simulation of Electromagnetic Flow Meter for Circular Pipe Type

Electromagnetic flow meter by measuring the varying of magnetic flux, which is related to the velocity of conductive flow, can measure the rate of fluids very carefully and precisely. Electromagnetic flow meter operation is based on famous Faraday's second Law. In these equipments, the constant magnetostatic field is produced by electromagnet (winding around the tube) outside of pipe and inducting voltage that is due to conductive liquid flow is measured by electrodes located on two end side of the pipe wall. In this research, we consider to 2-dimensional mathematical model that can be solved by numerical finite difference (FD) solution approach to calculate induction potential between electrodes. The fundamental concept to design the electromagnetic flow meter, exciting winding and simulations are come out by using MATLAB and PDE-Tool software. In the last stage, simulations results will be shown for improvement and accuracy of technical provision.

• M. Karamifard
• M. Kazeminejad
• A. Maghsoodloo

• Electromagnetic Flow Meter
• Induction Voltage
• Finite Difference

[1] J. A. Shercliff, "The Theory of Electromagnetic Flow Measurement",
London, Cambridge, U.K.: Cambridge University Press, pp. 10-35,
(1962).
[2] M. K. Bevir, "The Theory of Induced Voltage Electromagnetic
Flowmeters", Journal of Fluid Mechanics, Vol. 43, part 3, pp. 577-590,
(1970).
[3] R. A. Hooshmand, M. Joorabian, "Design and optimization of
electromagnetic flowmeter for conductive liquids and its calibration
based on neural networks", IEE Proc-Sci Meas. Technol, Vol. 153, No.
4, pp. 139-146, (2006).
[4] J. Z. Wang, C. L. Gong, G. Y. Tian, G. P. Lucas, "Numerical Simulation
Modeling for velocity measurement of Electromagnetic flow meter",
Journal of Physics: Conference Series, Vol. 48, pp. 36-40, (2006).
[5] J. Wang, G. Y. Tian, A. Simm, G. P. Lucas, "Simulation of magnetic
field distribution of excitation coil for EM flow meter and its validation
using magnetic camera", 17th World Conference on Nondestructive
Testing, Shanghai, China, 2008.
[6] A. Michalski, and S. Wincenciak, ÔÇÿWeight Vector in Designing of
Primary Transducers for Electromagnetic Flowmeters-, Archives
Electronic Engineering, Vol. XLVII, No. 183-1, pp. 81-99, (1998).M.
Young, The Techincal Writers Handbook. Mill Valley, CA: University
Science, 1989.
[7] A. Michalski, J. Starzynski, and S. Wincenciak, ÔÇÿOptimal Design of the
Coils of the Electromagnetic Flowmeter-, IEEE Transactions on
Magnetics, Vol. 34, No. 5, pp. 2563-2566, (1998).
[8] J. E. Cha, Y. C. Ahn, and M. H. Kim, ÔÇÿFlow measurement with an
electromagnetic flowmeter in two-phase bubbly and slug flow regimes-,
Flow Measurement and Instrumentation, Vol. 12, No. 2, pp. 329-339.,
(2002).
[9] E. G. Strangas, and T. W. Scott, ÔÇÿDesign of a Magnetic Flowmeter for
Conductive Fluids-, IEEE Transactions on instrumentation and
measurement, Vol. 37, No. 1, pp. 35-38, (1998).
[10] R. C. Baker, ÔÇÿFlow Measurement Handbook: Industrial Design,
Operating, Performance, and Applications-, Cambridge University Press,
(2005).
[11] A. Michalski, ÔÇÿDry Calibration Procedure of Electromagnetic Flowmeter
for Open Channels-, IEEE Transactions on Instrumentation and
Measurement, Vol. 49, No. 2, pp. 435-438, (2000).