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  • Title: Some technical aspects of magnetic stimulation coil design with the ferromagnetic effect.
    Author: Han BH, Lee SY, Kim JH, Yi JH.
    Journal: Med Biol Eng Comput; 2003 Sep; 41(5):516-8. PubMed ID: 14572000.
    Abstract:
    The performance of the stimulation coil in a magnetic nerve stimulator can be improved by attaching a ferromagnetic structure to the coil. This reduces heat generation at the coil and increases magnetic field strength for a given unit of current. Some technical aspects of the design of a stimulation coil with a ferromagnetic structure have been studied. Finite element method analysis results are presented for the effect of size, depth and magnetic saturation of the ferromagnetic structure on the stimulation coil performance. The experimental results show that the stimulation coil performance is improved by up to 40% by the attaching of a ferromagnetic structure on the coil.
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