G - Physics
08
B
G08B 13/24 (2006.01)
Patent
CA 2161825
- 21 - A magnetic marker of the invention comprises a magnetic thin wire for generating pulses and soft magnetic materials having a smaller coercive force than the magnetic thin wire, the bodies are arranged close to the two ends of the thin wire. The magnetic thin wire has a diameter of 60-115 µm and has a ratio of Br/BS of BH loop of 0.8 or more. Thus, a small magnetic marker can be provided which shows large Barkhausen effect even if it has a very short magnetic thin wire.
Hirano Toshiyuki
Kawashima Katsuhiro
Ogasawara Isamu
Kirby Eades Gale Baker
Unitika Ltd.
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