A sensor for detection of conductive bodies

Details A sensor for detection of conductive bodies A sensor for detection of conductive bodies

G - Physics

01

V

G01V 3/08 (2006.01) G08B 13/26 (2006.01)

Patent

CA 2724614

A sensor (100) for capacitively detecting presence of conductive objects (BOD1) comprises a first signal electrode (10a), a second signal electrode (10b), and a base electrode structure (20), wherein the distance (s3) between said first signal electrode (10a) and said second signal electrode (10b) is smaller than or equal to 0.2 times the width (s1) of said first signal electrode (10a), and wherein at least a part of said base electrode structure (20) is between said first signal electrode (10a) and said second signal electrode (10).

La présente invention concerne un capteur (100) de détection capacitive de présence dobjets conducteurs (BOD1). Ledit capteur comprend une première électrode de signal (10a), une seconde électrode de signal (10b), et une structure délectrode de base (20), la distance (s3) entre ladite première électrode de signal (10a) et ladite seconde électrode de signal (10b) étant inférieure ou égale à 0,2 fois la largeur (s1) de ladite première électrode de signal (10a), et au moins une partie de ladite structure délectrode de base (20) étant entre ladite première électrode de signal (10a) et ladite seconde électrode de signal (10).

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