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  1. Power-frequency magnetic fields from electric blankets.

    Article - En anglais

    Power-frequency (50/60 Hz) magnetic fields produced by electric blankets are estimated from data on blanket design using a three-dimensional computer model.

    Maximum, minimum, and volume-average fields within human forms are presented as a function of blanket type and a number of geometric factors including body size, body-blanket separation, and lateral body position.

    When blankets are heating, typical flux densities range from a few tenths of microtesla (muT) on the side of the body farthest from the blanket up to a few tens of microtesla on the side closest to the blanket.

    Superposition results in local minima within the body that approach zero field intensity.

    Across the blanket-using population, flux densities averaged over the whole body range from 1.5-3.36 muT with typical values of 2.2 muT.

    Mots-clés Pascal : Champ magnétique, Distribution, Couverture, Fréquence, Puissance, Intensité, Simulation ordinateur, Densité flux, Facteur géométrique, Méthode calcul, Epidémiologie, Biophysique, Couverture chauffante

    Mots-clés Pascal anglais : Magnetic field, Distribution, Coverage, Frequency, Power, Intensity, Computer simulation, Flux density, Geometrical factor, Calculating method, Epidemiology, Biophysics

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 91-0005507

    Code Inist : 002B30E. Création : 199406.