US 11,774,229 B2
Eddy current sensor device for measuring a linear displacement
Axel Bartos, Dortmund (DE); Reinhold Pieper, Dortmund (DE); and Armin Meisenberg, Dortmund (DE)
Assigned to TE Connectivity Sensors Germany GmbH, Dortmund (DE)
Filed by TE Connectivity Sensors Germany GmbH, Dortmund (DE)
Filed on Dec. 1, 2021, as Appl. No. 17/539,979.
Claims priority of application No. 20211153 (EP), filed on Dec. 2, 2020.
Prior Publication US 2022/0170729 A1, Jun. 2, 2022
Int. Cl. G01B 7/00 (2006.01); G01D 5/20 (2006.01)
CPC G01B 7/003 (2013.01) [G01D 5/2073 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An Eddy current sensor device, comprising:
a sender member emitting a magnetic field;
a central position sensing member including a pair of central sense coils each being formed by a plurality of turns; and
an edge position sensing member including a pair of edge sense coils each being formed by a plurality of turns.
 
20. A sensor assembly, comprising:
a non-magnetic and non-conductive sleeve adapted to receive a conductive element; and
a sensor device integrated into the sleeve, including:
a sender member emitting a magnetic field;
a central position sensing member outputting a central position signal dependent on the linear displacement of the boundary of the conductive element, the central position sensing member including a pair of central sense coils each being formed by a plurality of turns; and
an edge position sensing member outputting an edge position signal dependent on the linear displacement of the boundary of the conductive element, the edge position sensing member including a pair of edge sense coils each being formed by a plurality of turns.