Arrangement for determining position of a sensor in a...

Details Arrangement for determining position of a sensor in a... Arrangement for determining position of a sensor in a...

2007-07-10

2007-07-10

Patidar, Jay M. (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207210

Reexamination Certificate

active

10541415

ABSTRACT:
A description is given of an arrangement for determining the position of a magnetic-field-sensitive sensor unit in the magnetic field of a magnet arrangement having an at least substantially bar-shaped contour along an at least substantially rectilinear motion coordinate that extends parallel to a longitudinal axis of the at least substantially bar-shaped contour, in which the magnetic-field-sensitive sensor unit is intended to measure a component of the magnetic field which extends in a plane that is at least substantially parallel to the longitudinal axis of the at least substantially bar-shaped contour in a manner at least substantially perpendicular to this longitudinal axis, and the magnet arrangement has a magnetic north pole in the region of a first end of the at least substantially bar-shaped contour, a magnetic south pole in the region of a second end of the at least substantially bar-shaped contour, and a narrowing of the at least substantially bar-shaped contour in the central region extending between the north pole and the south pole. Better use can thereby be made of the dimension of the magnet arrangement than for a range that can be used for position measurement.

REFERENCES:
patent: 6724185 (2004-04-01), Ooki et al.
patent: 6798195 (2004-09-01), Luetzow
patent: 2004/0017187 (2004-01-01), Van Ostrand et al.

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