磁気記録再生システムの位相特性決定法

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タイトル別名
  • A Method for the Determination of Phase Characteristics of a Magnetic Tape Recording System
  • ジキ キロク サイセイ システム ノ イソウ トクセイ ケッテイ ホウ

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説明

A method is proposed for measurement of phase characteristics of magnetic tape recording systems. It is necessary to define the frequency of zero phase-shift in order to express the phase characteristic properly. However there is no absolute zero phase-shift frequency in magnetic tape recorders. In this paper we demonstrate mathematically the adequacy of adopting the frequency where the curve of phase characteristics, plotted in a form of the phase shift versus the logarithmic frequency, has the point of inflection as the zero phase-shift frequency.

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