公开(公告)号：US10267672B2

公开(公告)日：2019-04-23

申请号：US15393934

申请日：2016-12-29

Applicant: WITHINGS

Inventor： Thomas Bedetti ,  Arthur Meyre ,  Nadine Buard ,  Cédric Hutchings

IPC: G01G19/44 ,  G01G3/13 ,  G01G21/22 ,  G01G3/16 ,  G01G9/00

Abstract: 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.

公开(公告)号：US20180188103A1

公开(公告)日：2018-07-05

申请号：US15393934

申请日：2016-12-29

Applicant: WITHINGS

Inventor： Thomas Bedetti ,  Arthur Meyre ,  Nadine Buard ,  Cédric Hutchings

IPC: G01G19/44 ,  G01G9/00 ,  G01G21/22

CPC classification number: G01G19/44 ,  G01G3/13 ,  G01G3/16 ,  G01G9/00 ,  G01G21/22

Abstract: 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.