Printed circuit card-based proximity sensor and associated...

Details Printed circuit card-based proximity sensor and associated... Printed circuit card-based proximity sensor and associated...

2008-04-08

2008-04-08

Patidar, Jay M (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S253000, C336S234000

Reexamination Certificate

active

07355392

ABSTRACT:
A proximity sensor assembly includes a multilayer printed wiring board proximity sensor, the proximity sensor being operable as either a variable-reluctance sensor or an eddy current loss sensor. The proximity sensor includes a plurality of layers configured to form at least one wound coil disposed about at least a portion of a core. The coils are electrically driven to generate an alternating magnetic field such that the inductance of the coils changes when a permeable or conductive object is moved in relation to the magnetic field. The change in inductance is recognized and used to detect the proximity and presence of an object relative to the sensor.

REFERENCES:
patent: 3743853 (1973-07-01), Dittman et al.
patent: 4122708 (1978-10-01), Maier
patent: 4387339 (1983-06-01), Akerblom
patent: 4587486 (1986-05-01), Soyck
patent: 4950986 (1990-08-01), Guerrero
patent: 5012206 (1991-04-01), Tigges
patent: 5149962 (1992-09-01), Maurice
patent: 5334831 (1994-08-01), Maurice
patent: 5767672 (1998-06-01), Guichard et al.
patent: 5936403 (1999-08-01), Tamura
patent: 6270686 (2001-08-01), Tamura
patent: 6424145 (2002-07-01), Woolsey et al.
patent: 6949925 (2005-09-01), Johnson et al.
patent: 7015691 (2006-03-01), Kang et al.
patent: 0 232 243 (1987-08-01), None
patent: 1128883 (1968-10-01), None
patent: 1224208 (1971-03-01), None
patent: WO 01/65695 (2001-09-01), None
Notice of Opposition to a European Patent, Patent No. 1264404, Appl. No. 01914594:5; Aug. 2003; available at <http://ofi.eopline.org/view/GetDossier> (visited Sep. 27, 2000).

Affiliated with

Also associated with

Rating

Printed circuit card-based proximity sensor and associated... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printed circuit card-based proximity sensor and associated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printed circuit card-based proximity sensor and associated... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2766499