A new high density magnetic bar code system

Naoyuki Watanabe, Ichiro Sasada, Naoshi Asuke

研究成果: Contribution to journalConference article査読

4 被引用数 (Scopus)

抄録

Magnetic bar codes can be used in dirty environments instead of optical bar codes or as invisible codes in order to enhance the security of prepaid cards. In this article, we propose a high density magnetic bar code system in which the existence or nonexistence of a bar element is detected by a magnetic bridge. A micro head constituting a magnetic bridge is fabricated with thin amorphous cores and thin copper wire coils. The magnetic bar elements are printed with magnetic ink. The basic characteristics, such as signal separation from neighboring bar elements, are discussed in terms of the element width and the space between two adjacent elements.

本文言語英語
ページ(範囲)5462-5464
ページ数3
ジャーナルJournal of Applied Physics
85
8 II B
DOI
出版ステータス出版済み - 4 15 1999
イベントProceedings of the 43rd Annual Conference on Magnetism and Magnetic Materials - Miami, FL, 米国
継続期間: 11 9 199811 12 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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