This disclosure provides systems, methods and apparatus for detecting foreign objects. In one aspect an apparatus for detecting a presence of an object in a magnetic field is provided. The apparatus includes a power circuit configured to generate the magnetic field and transfer power wirelessly at a level sufficient to power or charge a load via the magnetic field. The apparatus further includes a detection circuit configured to transmit signals and detect, based on a reflection of the transmitted signals, a frequency of vibration of the object caused by the magnetic field.


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    Titel :

    Systems, methods, and apparatus for detection of metal objects in a predetermined space


    Beteiligte:
    WIDMER HANSPETER (Autor:in) / BITTNER MARKUS (Autor:in) / SIEBER LUKAS (Autor:in) / FISCHER MARCEL (Autor:in)

    Erscheinungsdatum :

    2016-08-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G01S RADIO DIRECTION-FINDING , Funkpeilung / G01V Geophysik , GEOPHYSICS / H01F MAGNETS , Magnete / H04B TRANSMISSION , Übertragung



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