Apparatus for measuring specific absorption rates
AssigneeDeutsche Telekom AG
InventorsVolker Hombach, Bernd Marx, Thomas Loppnow
Life of this patent
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Abstract
An apparatus for measuring the specific absorption rate (SAR) of a device (8) which generate electromagnetic fields. The apparatus includes a homogeneous solid spherical test phantom which has the average electrical properties of human tissue and at a defined distance from the surface contains a dipole probe 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 device to be tested, for example a mobile telephone, is guided past the surface of the phantom and turned until the instrument displays the maximum SAR value of the relevant limit.
Claims8
An apparatus for measuring a specific absorption rate caused in a head phantom by a device which produces electromagnetic fields, the apparatus comprising:
- a homogeneous spherical phantom model including a solid material having average electrical properties of human tissue;
- and
- an electrical field probe including evaluation electronics, the electrical field probe being disposed in the phantom model so as to enable the specific absorption rate over a defined mass to be directly read off at an associated display instrument in response to an approach of the device which produces electromagnetic fields to the phantom model.
Dependencies are inferred from the claim text.