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Examples of experiments and models on em induction

Examples of experiments and models on em induction. URDF - Uniud. Summary Moving magnet acros a coil (experimental analysis and model) Magnet- spring system inducing alternate e.m.f The B field generated by a magnet and is flux .EM Induction phenomana in circuits: RL circuit analysis

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Examples of experiments and models on em induction

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  1. Examples of experiments and models on em induction URDF - Uniud AS - URDF-University of Udine

  2. Summary • Moving magnet acros a coil (experimental analysis and model) • Magnet- spring system inducing alternate e.m.f • The B field generated by a magnet and is flux • .EM Induction phenomana in circuits: RL circuit analysis • .EM Induction phenomana in circuits: coupilng circuits (the static transformer) • Models of a U coil with a moving bar AS - URDF-University of Udine

  3. Magnet moving across a coil URDF - Uniud AS - URDF-University of Udine

  4. From Udine presentation of G. Bozzo: First analysis summary sonar To the PC Independet from velocity AS - URDF-University of Udine

  5. From Udine presentation of G. Bozzo: First analisys summary Equal and opposite AS - URDF-University of Udine

  6. See Also AS - URDF-University of Udine

  7. Correlation between: V and emfind AS - URDF-University of Udine

  8. e.m.f.ind v AS - URDF-University of Udine

  9. Main results of the experiments: R1) Integral in dt of the e.m.f. : proporzional to the flux variation tf Vind dt =  ( B) ti Integral in dt of the e.m.f. : proporzional to the flux variation Vind  v AS - URDF-University of Udine

  10. Analisys of the Bahaviour of the Vind vs position Vind vs position AS - URDF-University of Udine

  11. Analisys of the Bahaviour of the B (x) vs position AS - URDF-University of Udine

  12. Model –Experiment comparison Data analysis: fenomenological behaviour: B (x) = B/(x2+a2)3/2 AS - URDF-University of Udine

  13. The model of the falling magnet Equivalence: magnet and coil  B = A / (z2 – b2)3/2 Hypotesis  B= A * Bmax (A phenomenological parameter) AS - URDF-University of Udine

  14. The model of the falling magnet in Excel AS - URDF-University of Udine

  15. The model of the falling magnet in Coach AS - URDF-University of Udine

  16. Magnet- spring system inducing alternate e.m.f URDF – University of Udine AS - URDF-University of Udine

  17. Force sensor To the interfaced -PC AS - URDF-University of Udine

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  23. The collected data evidenced asimmetries related to the: • Asimmetry of the magnet oscillation with respect to the coil position AS - URDF-University of Udine

  24. The collected data evidenced asimmetries related to the: • suspected assimmetry of the magnet itself AS - URDF-University of Udine

  25. Phenomenon analysis n the Vind-position space AS - URDF-University of Udine

  26. Models of a U coil with a moving bar URDF – University of Udine AS - URDF-University of Udine

  27. The falling bar model in Coach: regime speed (Only the bar have a resitence) The bar reach a constant speed The induced current Jind tend to constant value AS - URDF-University of Udine

  28. U coil with linear resistence (R of the coil increase when the bar fall down) The speed of the bar before decrease, after increase The induced current Jind tend to zero AS - URDF-University of Udine

  29. The superconducting U coil The bar oscillate The amplitude of J in the superconductor oscillate AS - URDF-University of Udine

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