Screen LibraryShort-wavelength magnetic recording : new methods and analyses /
Short-wavelength magnetic recording presents a series of practical solutions to a wide range of problems in the field of magnetic recording. It features many new and original results, all derived from fundamental principles as a result of up-to-date research. A special section is devoted to the play...
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| Main Authors: | |
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| Published: |
Elsevier Advanced Technology ; Distributed in the USA and Canada by Elsevier Science Pub. Co.,
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| Publisher Address: | Oxford, UK : New York : |
| Publication Dates: | 1990. |
| Literature type: | eBook |
| Language: | English |
| Subjects: | |
| Online Access: |
http://www.sciencedirect.com/science/book/9780946395569 |
| Summary: |
Short-wavelength magnetic recording presents a series of practical solutions to a wide range of problems in the field of magnetic recording. It features many new and original results, all derived from fundamental principles as a result of up-to-date research. A special section is devoted to the playback process, including the calculations of head efficiency and head impedance, derived from new theorems. Features include:A simple and fast method for measuring efficiency; a simple method for the accurate separation of the read and write behaviour of magnetic heads; a new concept - the bandpass hea. |
| Carrier Form: | 1 online resource (xxvii, 564 pages) : illustrations |
| Bibliography: | Includes bibliographical references and indexes. |
| ISBN: |
9781483292465 1483292460 |
| Index Number: | TK5981 |
| CLC: | TN912.12 |
| Contents: |
Front Cover; Short-Wavelength Magnetic Recording: New Methods and Analyses; Copyright Page; Table of Contents; Glossary of special definitions, symbols and notations; Curriculum vitae; Acknowledgements; Foreword; Chapter 1. Introduction; 1.1 History; 1.2 Basic principles of magnetic recording; 1.3 Scope of this book; References; Chapter 2. Calculations of the field near magnetized anisotropic layered media including backlayer and gap smear; 2.1 Introduction; 2.2 Field calculations; 2.3 Real coating and backlayer permeability; 2.4 Real coating permeability and no backlayer. Chapter 4. Further considerations concerning the alternative reciprocity theorem4.1 Introduction; 4.2 The extended form of the alternative reciprocity theorem in the x, y, z space; 4.3 The alternative reciprocity theorem in k space; 4.4 Release from the requirement 'dispersion free'; 4.5 The use of complex time- and x-independent quantities in the alternative reciprocity theorem; Appendix 4.1 The alternative reciprocity theorem for a disper- sion-free tape and a head showing dispersion; References; Chapter 5. Sensitivity functions, gap loss functions and the efficiency; 5.1 Introduction. 6.5 Concluding remarksReferences; Chapter 7. A simple model for unbiased sine-wave recording; 7.1 Introduction; 7.2 Theory and verification; 7.3 Discussion; 7.4 Influence of low permeability around the gap; 7.5 Conclusions; Appendix 7.1 Playback voltage in the case of the UMM; Appendix 7.2 Survey of literature and comments; References; Chapter 8. Video-head parameters: model and measurements; 8.1 Analytical approach to 3-dimensional video head; 8.2 Quick efficiency measurement; 8.3 Comparison of measurements with model calculations; 8.4 Comparison of model with FEM calculations. |