#119 In this video I look at shielding methods, in particular taking a closer look at how a shield can be made to better reject magnetic fields. I look at how a shield can do this - what are its main proprieties of interest and then I try things out by measuring the shielding effectiveness of 3 materials - a sheet of copper, one of steel and also a sheet of ferrite.
Related content:
Magnetic field shielding: https://youtu.be/2U1o66bs_Qg
Electric field shielding: https://youtu.be/Sxqa7N-fuHM
Magnetic field probes: https://youtu.be/l2YS1s6HxHU
Electric field probes: https://youtu.be/S27zk_Gj9nU
Used links and further reading:
https://content.kemet.com/datasheets/KEM_FS8001_EF.pdf
http://home.eng.iastate.edu/~nbowler/pdf%20final%20versions/conferences/QNDE2005Bowler.pdf
https://incompliancemag.com/article/skin-effect-and-surface-currents/
https://learnemc.com/practical-em-shielding
Model for coil structure:
https://www.thingiverse.com/thing:4850167
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