Title :
A novel approach to eliminating short ending effects in the primary transducer of electromagnetic flow meter
Author :
Michalski, A. ; Starzynski, J. ; Wincenciak, S.
Author_Institution :
Inst. of the Theory of Electr. Eng. & Electr. Meas., Warsaw Univ., Poland
Abstract :
This paper describes a new method of primary transducer length optimization for electromagnetic flow meters. The method presented is based on eliminating a short ending effect which appears in the area where the magnetic field rapidly vanishes. The authors focused on the method which uses similar numerical tools as the shape design of the cross-section of the excitation coil. The method is based on a simple 2D mathematical model of the primary transducer. Some results of calculations for two water to ground conductivities ratio and for the rectangular flow channel are discussed
Keywords :
Poisson equation; boundary-value problems; coils; electromagnetic devices; electromagnetic induction; flowmeters; magnetic flux; optimisation; transducers; 2D mathematical model; boundary problem; electromagnetic flow meters; excitation coil; induced potential distribution; magnetic flux density distribution; numerical tools; primary transducer length optimization; rectangular flow channel; shape design; short ending effects elimination; Coils; Electrodes; Electromagnetic measurements; Fluid flow measurement; Insulation; Length measurement; Magnetic field measurement; Magnetic flux density; Transducers; Velocity measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.846865
