Position sensor

Details Position sensor Position sensor

2011-01-11

2011-01-11

LeDynh, Bot L (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S207240, C324S207260

Reexamination Certificate

active

07868609

ABSTRACT:
A position encoder is provided for indicating the relative position between first and second relatively move members. One of the members carries a magnetic field generator which generates a magnetic field whose magnitude and direction vary with position. In a preferred embodiment, the other member carries an excitation winding, one or more sensor windings and a film of magnetizable material. The arrangement is such that the positionally varying magnetic field interacts with the film to change the mutual coupling between the excitation winding and the or each sensor winding. Excitation and processing circuitry is provided for energising the excitation winding and for processing the sensor signals to determine a value indicative of the relative position between the first and second relatively movable members.

REFERENCES:
patent: 3331045 (1967-07-01), Weiss et al.
patent: 4774465 (1988-09-01), Nilius
patent: 4950988 (1990-08-01), Garshelis
patent: 5204621 (1993-04-01), Hermann et al.
patent: 5280239 (1994-01-01), Klimovitsky et al.
patent: 5604621 (1997-02-01), Fujikane
patent: 5617023 (1997-04-01), Skalski
patent: 5781006 (1998-07-01), Beichler
patent: 6118271 (2000-09-01), Ely et al.
patent: 6222360 (2001-04-01), Tischer et al.
patent: 6265867 (2001-07-01), Fowler
patent: 6605939 (2003-08-01), Jansseune et al.
patent: 6653828 (2003-11-01), Dordet et al.
patent: 6714004 (2004-03-01), Jagiella
patent: 7321229 (2008-01-01), Tapson
patent: 7482803 (2009-01-01), Lee et al.
patent: 2004/0036468 (2004-02-01), Hoffelder et al.
patent: 3914787 (1990-11-01), None
patent: 19621886 (1997-12-01), None
patent: 19919424 (2000-11-01), None
patent: 10250846 (2004-05-01), None
patent: 0191223 (1986-08-01), None
patent: 0896205 (1999-02-01), None
patent: 1048932 (2000-11-01), None
patent: WO-95/31696 (1995-11-01), None
patent: WO-03/038379 (2003-05-01), None
SPIES, Partial English Translation of DE19621886, Dec. 4, 1997.
International Search Report for International Application No. PCT/GB2005/000775, completed on Aug. 30, 2005.
Written Opinion for International Application No. PCT/GB2005/000775, completed on Aug. 30, 2005.
International Report on Patentability for corresponding International Application No. PCT/GB2005/000775 issued Sep. 5, 2006.

Affiliated with

Also associated with

Rating

Position sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Position sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2681846