학술논문
Amplitude and asymmetry correlation study between quasistatic and dynamic electrical testing of MR sensors
Document Type
Periodical
Source
IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 34(4):1525-1527 Jul, 1998
Subject
Language
ISSN
0018-9464
1941-0069
1941-0069
Abstract
The peak amplitudes of a shielded MR sensor are shown to be well correlated over a wide range of hard-axis magnetic fields and bias currents between quasi-static and dynamic electrical testing. The peak asymmetry correlation appears to be head design specific. Write disturbances significantly increase the standard deviation of the amplitude and asymmetry repeatability measurements. The presence of a small dc easy-axis magnetic field has little effect on MR responses to uniform fields.