誘導加熱調理器近傍の加熱周波数磁界の測定と人体誘導電流推定

概要

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Magnetic fields around induction heating hobs are measured and evaluated with regard to the compliance with safety guidelines of human exposure. The magnetic flux density distributions are highly inhomogeneous and the maximum can exceed the reference levels of the guideline at the very proximity to the device. The induced current densities in human body exposed to these magnetic fields are estimated by numerical calculations by means of impedance method with an anatomical human model. The results indicate that induced currents are sufficiently lower than the basic restriction of the ICNIRP guideline. It is shown that the spatially peak incident field does not provide a relevant reference to compare with the reference level of guideline because it is too conservative but spatially averaged incident magnetic field provides much more relevant reference.
2005-05-01