公开(公告)号：US20190018163A1

公开(公告)日：2019-01-17

申请号：US15646841

申请日：2017-07-11

Applicant: TK Holdings Inc.

Inventor： DAVID WILSON

IPC: G01V3/08 ,  G01D5/241

CPC classification number: G01V3/088 ,  G01D5/2417 ,  G01R27/2605

Abstract: A capacitive detection system including an upper electrode printed on an upper film layer and a lower electrode printed on a lower film layer. The system includes a plurality of nodes of dielectric material printed in a spaced apart pattern on the lower film layer. The upper film layer is positioned over the lower film layer so that when a downward force is applied to the upper film layer the distance between at least a portion of the upper conductor and the lower conductor decreases. The system includes a controller operatively connected to the upper and lower electrodes. The controller includes a sensing circuit or processor configured to detect the presence of the occupant using a measure of the capacitance between the upper and lower electrode.