Sensor unit with staggered actuation faces

Details Sensor unit with staggered actuation faces Sensor unit with staggered actuation faces

2005-11-17

2008-10-28

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207150

Reexamination Certificate

active

07443159

ABSTRACT:
An inductive sensor for detecting the position of a vehicle seat or for a gate shifting unit of an automatic transmission is described. The inductive sensor unit has a plurality of sensor coils that are disposed in planar fashion on a printed circuit board A conductive actuation element is guided, spaced apart, in a path over the sensor coils and an electrical evaluation circuit detects changes in inductance of the sensor coils in accordance with the path position of the actuation element and converts the changes into electrical signals corresponding to seat position signals on gear shifting signals. The actuation element is guided along the sensor coils with conductive bottom faces that are staggered in the direction of the path.

REFERENCES:
patent: 2003/0169033 (2003-09-01), Tromblee et al.
patent: 2006/0132120 (2006-06-01), Luber et al.
patent: 103 19 720 (2004-09-01), None
patent: WO 2004/027994 (2004-01-01), None

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