Measurement of the electrical conductivity of metallic tubes by studying magnetic screening at low frequency

American Journal of Physics

Volumn 73, Issue 3, 2005, Pages 206-210

  Iniguez J ^a   Raposo, V ^a   Flores, A G ^a   Zazo, M ^a   Hernandez Lopez A ^a  

^a UNIVERSITY OF SALAMANCA   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 15544368343     PISSN: 00029505     EISSN: None     Source Type: Journal    
DOI: 10.1119/1.1842730     Document Type: Article

References (10)

1. P. Jacobs and V. Jadin, Mesures Électriques (Dunod, Paris, 1968).
2. C. S. MacLatchy, P. Backman, and L. Bogan, "A quantitative magnetic braking experiment," Am. J. Phys. 61, 1096-1101 (1993).
3. K. D. Hahn, E. M. Johnson, A. Brokken, and S. Baldwin, "Eddy current damping of a magnet moving through a pipe," Am. J. Phys. 66, 1066-1076 (1998).
4. J. Íñiguez, V. Raposo, A. Hernández-López, A. G. Flores, and M. Zazo, "Study of the conductivity of a metallic tube by analyzing the damped fall of a magnet," Eur. J. Phys. 25, 593-604 (2004).
5. B. D. Popovic, Introductory Engineering Electromagnetics (Addison-Wesley, Reading, MA, 1971).
6. The properties of many materials can be found at 〈http://www. goodfellow.com/csp/active/gfMaterials.csp〉.
7. D. J. Griffths, Introduction to Electrodynamics, 3rd ed. (Prentice-Hall, Englewood Cliffs, 1999).
8. FEMM is a Windows-based program for analyzing 2D and axisymmetric problems in magnetics, including linear and nonlinear problems, via the finite element method. The package is composed of a triangular mesh generator, a conjugate gradient solver, and a graphical post-processor. For more information, see 〈http://femm.foster-miller.net〉.
9. 〈http://www.ndt-ed.org/GeneralResources/MaterialProperties/ET/ ET_matlprop_IronBased.htm〉
10. The Web site, 〈http://www.zetec.com/resources/ndt_technologies. asp#ec〉, has many resources related to nondestructive testing.