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Magnetic "shielding" problem: Microscope objective inside Helmholtz coils

Posted Sep 25, 2009, 9:34 a.m. EDT 0 Replies

Michael Miller
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I am looking at the perturbation of the magnetic field generated by Helmholtz coils due to a microscope objective between the coils. The objective is has a thin Ni/Cr coating that is magnetic. I know of a tutorial problem of a submarine in the Earth's magnetic field. In that example the Earth's field is a uniform background while the objective I am dealing with extends over a non-uniform field between the coils, i.e., the objective is large w.r.t. the coils. I want to combine the mode used to describe the thin magnetic "shield" with the current mode for the coils. Does anyone have some ideas of what to do here?

Thanks,

Mike
0 Replies Last Post Sep 25, 2009, 9:34 a.m. EDT
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