Apparatus for measuring the specific absorption rate

Details Apparatus for measuring the specific absorption rate Apparatus for measuring the specific absorption rate

G - Physics

01

R

G01R 29/00 (2006.01) G01R 29/08 (2006.01)

Patent

CA 2300303

The invention relates to a device for measuring the specific absorption rate (SAR) of apparatus (8) which generate electromagnetic fields. Said device consists of a homogeneous solid spherical test phantom (4) which has the average electrical properties of human tissue and at a defined distance from the surface contains a dipole probe (1) which is positioned in such a way that the derived probe signal is proportional to the average SAR for 1 g or 10 g of tissue. The apparatus (8) to be tested, notably a mobile telephone, is guided past the surface of the phantom and turned until the instrument (6) displays the maximum SAR value which is the relevant limit.

L'invention concerne un dispositif de mesure du taux d'absorption spécifique (SAR) provoqué par des appareils (8) générant des champs magnétiques. Ce dispositif comprend un fantôme sphérique solide et homogène (4) qui possède les propriétés électriques moyennes du tissu humain et contient une sonde dipôle (1) placée à une distance définie de la surface de telle façon que le signal de sonde dérivé est porportionnel à la valeur SAR moyenne supérieure à 1g ou 10g. L'appareil d'analyse (8) pouvant notamment être un téléphone tenant dans la main, est passé sur la surface du fantôme et tourné jusqu'à ce que la valeur SAR maximale significative en termes de valeur limite s'affiche sur l'instrument (6).

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