Off-track spacing loss of shielded MR heads
- Resource Type
- Periodical
- Authors
- Yuan, S.W.; Bertram, H.N.
- Source
- IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 30(3):1267-1273 May, 1994
- Subject
- Fields, Waves and Electromagnetics
Magnetic heads
Magnetic sensors
Magnetic recording
Voltage
Magnetic analysis
Magnetic shielding
Magnetic flux
Transistors
Fourier transforms
Sensor systems
- Language
- ISSN
- 0018-9464
1941-0069
The side-reading of a finite track-width shielded MR head is investigated both analytically and numerically. The head field (potential) utilized in a reciprocity calculation is obtained, and its Fourier transform is derived in semi-analytic forms. The off-track MR head response to a longitudinally magnetized micro-track and finite-width track is calculated from these results. Estimations on off-track spacing loss are undertaken for two types of shielded MR heads: finite track-width flush MR sensor and shields, and finite-width MR sensor with infinitely wide shields.ETX