Redistributing magnetic charge in bias element for magnetomechan

Details Redistributing magnetic charge in bias element for magnetomechan Redistributing magnetic charge in bias element for magnetomechan

1998-02-03

1999-12-07

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

3405721, 340551, G08B 1314

Patent

active

059990988

ABSTRACT:
A bias element for use in a magnetomechanical EAS marker is magnetized to saturation. Then the magnetic charge in the bias element is redistributed by applying to the bias element a magnetic field having an AC ringdown characteristic. The redistribution of magnetic charge improves the stability of the bias element, so that the marker incorporating the bias element is less likely to have its resonant frequency shifted by exposure to a stray magnetic field.

REFERENCES:
patent: 4510489 (1985-04-01), Anderson, III et al.
patent: 4900386 (1990-02-01), Richter-Jorgensen
patent: 5313192 (1994-05-01), Ho et al.
patent: 5420569 (1995-05-01), Dames et al.
patent: 5469140 (1995-11-01), Liu et al.
patent: 5495230 (1996-02-01), Lian
patent: 5565849 (1996-10-01), Ho et al.
patent: 5568125 (1996-10-01), Liu
patent: 5729200 (1998-03-01), Copeland et al.
patent: 5767770 (1998-06-01), Gadonniex
patent: 5825290 (1998-10-01), Lian et al.

Affiliated with

Also associated with

Rating

Redistributing magnetic charge in bias element for magnetomechan does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Redistributing magnetic charge in bias element for magnetomechan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Redistributing magnetic charge in bias element for magnetomechan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-829014