THIN WEIGHING SCALE USING ULTRASONIC LAMB WAVES AND METHOD USING SAME

THIN WEIGHING SCALE USING ULTRASONIC LAMB WAVES AND METHOD USING SAME

A weighing device, configured to measure at least the weight of a person or an object, comprising a control unit, a sensory plate, a top plate, spacer pads, interposed between the plates, wherein the sensory plate has an emission transducer configured to generate, a burst of Lamb waves at the surfac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BEDETTI, Thomas, MEYRE, Arthur, BUARD, Nadine, HUTCHINGS, Cedric
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
MEASURING
PHYSICS
TESTING
WEIGHING
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Beschreibung
Zusammenfassung:A weighing device, configured to measure at least the weight of a person or an object, comprising a control unit, a sensory plate, a top plate, spacer pads, interposed between the plates, wherein the sensory plate has an emission transducer configured to generate, a burst of Lamb waves at the surface of the sensory plate, a reception transducer, to receive echoed Lamb waves propagated through the sensory plate, the temporal profile of the echoed Lamb waves being dependent on the weight applied to the top plate and passed by the spacer pads to the sensory plate, wherein the control unit determines the weight applied to the top plate by analysis of the temporal profile of the echoed Lamb waves.