Abstract
A magnetic bar-code pattern recognition system with a magnetoresistive sensor is proposed. The bar-code consists of a set of grooves on an iron plate, similar to an optical bar-code pattern. When a magnet passes above the grooves on an iron plate, the magnetic field produced by the magnet is bent by the grooves. The barcode pattern of grooves can be reconstructed by detecting the bend using the magnetoresistive sensor. In this paper, computer simulation results of magnetic flux density distribution near the grooves, and prototype recognition systems with a magnetoresistive sensor are described. It is shown that a two-groove bar-code configuration with different groove depths depending on groove width and a thin-film magneto-resistive sensor construction are useful in realizing high resolution detection systems.
| Original language | English |
|---|---|
| Pages (from-to) | 1575-1577 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 26 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Jan 1 1990 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy (miscellaneous)
Cite this
Grooved Bar-Code Pattern Recognition System with Magnetoresistive Sensor. / Okabe, Hirotaka; Wakaumi, Hiroo.
In: IEEE Transactions on Magnetics, Vol. 26, No. 5, 01.01.1990, p. 1575-1577.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Grooved Bar-Code Pattern Recognition System with Magnetoresistive Sensor
AU - Okabe, Hirotaka
AU - Wakaumi, Hiroo
PY - 1990/1/1
Y1 - 1990/1/1
N2 - A magnetic bar-code pattern recognition system with a magnetoresistive sensor is proposed. The bar-code consists of a set of grooves on an iron plate, similar to an optical bar-code pattern. When a magnet passes above the grooves on an iron plate, the magnetic field produced by the magnet is bent by the grooves. The barcode pattern of grooves can be reconstructed by detecting the bend using the magnetoresistive sensor. In this paper, computer simulation results of magnetic flux density distribution near the grooves, and prototype recognition systems with a magnetoresistive sensor are described. It is shown that a two-groove bar-code configuration with different groove depths depending on groove width and a thin-film magneto-resistive sensor construction are useful in realizing high resolution detection systems.
AB - A magnetic bar-code pattern recognition system with a magnetoresistive sensor is proposed. The bar-code consists of a set of grooves on an iron plate, similar to an optical bar-code pattern. When a magnet passes above the grooves on an iron plate, the magnetic field produced by the magnet is bent by the grooves. The barcode pattern of grooves can be reconstructed by detecting the bend using the magnetoresistive sensor. In this paper, computer simulation results of magnetic flux density distribution near the grooves, and prototype recognition systems with a magnetoresistive sensor are described. It is shown that a two-groove bar-code configuration with different groove depths depending on groove width and a thin-film magneto-resistive sensor construction are useful in realizing high resolution detection systems.
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UR - http://www.scopus.com/inward/citedby.url?scp=0025491556&partnerID=8YFLogxK
U2 - 10.1109/20.104451
DO - 10.1109/20.104451
M3 - Article
AN - SCOPUS:0025491556
VL - 26
SP - 1575
EP - 1577
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 5
ER -