The use of reciprocity in the analysis of the magnetic reproducing process

Author

Tagawa, Ikuya ; Yamamoto, Setsuo ; Nakamura, Yoshihisa

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2719

Lastpage

2721

Abstract

Reciprocity as conventionally used for a theoretical calculation of reproduced voltage in magnetic recording has been examined by a magnetic recording simulator. The recording characteristics are influenced by the magnetic interaction between a head and a medium, especially in perpendicular magnetic recording combined with a single-pole head and a Co-Cr/Ni-Fe medium. To investigate the influence of the head-medium magnetic interaction on reciprocity, reproduced waveforms calculated by reciprocity have been compared with those obtained by the simulator. It is confirmed that reciprocity completely holds independently of the head-medium magnetic interaction when the head field distribution in the absence of a recording layer of a medium has been used for the head sensitivity function in the reciprocity integral

Keywords

magnetic fields; magnetic heads; magnetic recording; magnetisation; sensitivity; waveform analysis; CoCr-NiFe medium; head field distribution; head sensitivity function; head-medium magnetic interaction; magnetic recording; magnetic reproducing process; magnetization distribution; perpendicular magnetic recording; reciprocity; recording simulator; reproduced voltage; reproduced waveforms; single-pole head; Analytical models; Finite element methods; Magnetic analysis; Magnetic flux; Magnetic heads; Magnetic recording; Magnetic susceptibility; Magnetization; Perpendicular magnetic recording; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179607

Filename

179607