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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yeh, N.H. Yang, K.N. |
| Copyright Year | 1965 |
| Abstract | Recording heads made of complex permeability materials produce a deep gap field which may have an amplitude loss and a phase distortion with respect to the driving current. Simple Karlquist field equations indicate that the ratio of the far head field to the deep gap field is only a function of geometric dimensions. However, in the flux loop measurement of a ferrite VCR head, the far field does not follow the deep gap field at high frequencies. Analysis of head field equations shows that an equivalent surface current resulting from the complex head permeability can account for this paradox. The use of a flux loop to characterize the head transfer function in a magnetic recording channel is also discussed.< |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3864 |
| Ending Page | 3866 |
| Page Count | 3 |
| File Size | 255577 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 29 |
| Issue Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-11-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic heads Permeability Equations Phase distortion Distortion measurement Frequency measurement Magnetic field measurement Ferrites Video recording Magnetic analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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