Magnetic marker for use in identification systems and an indenti

Details Magnetic marker for use in identification systems and an indenti Magnetic marker for use in identification systems and an indenti

1995-02-23

1997-02-11

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

148103, 148105, 340572, G08B 1324

Patent

active

056025270

ABSTRACT:
An assembly of a dry coating (A) that has a magnetic powder with a saturation flux density of at least 100 emu/g is dispersed in a binder. A magnetostrictive metal (B), when the coating (A) is magnetized, resonates mechanically at a predetermined frequency in the range of varying frequencies. The varying frequencies are generated from an applied alternating magnetic field. Changes in flux density and permeability are experienced. When the coating (A) is not magnetized, metal (B) does not resonate at the predetermined frequency, thus experiencing no changes in flux density or permeability. The dry coating (A) and the metal (B) have a superposed relationship in such a way that the latter is capable of mechanical resonance, the marker being so adapted that when said coating (A) is magnetized, the predetermined frequency at which the flux density or permeability will change is generated as a signal in response to the applied alternating magnetic field.

REFERENCES:
patent: 4510490 (1985-04-01), Anderson, III et al.
patent: 4935724 (1990-06-01), Smith
patent: 5029291 (1991-07-01), Zhou et al.
patent: 5401584 (1995-03-01), Minasy et al.
patent: 5469140 (1995-11-01), Liu et al.
patent: 5499015 (1996-03-01), Winkler et al.

Affiliated with

Also associated with

Rating

Magnetic marker for use in identification systems and an indenti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic marker for use in identification systems and an indenti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic marker for use in identification systems and an indenti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-345446