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Magnetoresistive transducer for absolute position detection
Groenland, J.P.J. (1984) Magnetoresistive transducer for absolute position detection. IEEE Transactions on Magnetics, 20 (5). pp. 969-971. ISSN 0018-9464
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| Abstract: | In this paper a new method is presented for the measurement of absolute linear or angular position. The digital position information is recorded serially into one track of a suitable hard-magnetic medium. The stray field of this information layer determines the angular magnetisation distribution in a ferromagnetic (permalloy) detection strip which is positioned parallel to the track but with its plane perpendicular to the hard-magnetic layer. The bit pattern representing the position co-ordinate is regained by detection of the planar magnetoresistance effect in the sensor strip. Experiments have been performed using sensors with a resolution of 250 ¿m and 1 mm respectively and longitudinally recorded audio tape. Suitable sensor output signals could be measured without hysteresis. |
| Item Type: | Article |
| Copyright: | © 1984 IEEE |
| Faculty: | Electrical Engineering, Mathematics and Computer Science (EEMCS) |
| Research Group: | |
| Link to this item: | http://purl.utwente.nl/publications/55582 |
| Official URL: | http://dx.doi.org/10.1109/TMAG.1984.1063186 |
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