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使用磁阻效应已经制成了高保真放音磁头。通过磁反馈,显著地降低了磁阻元件的巴克豪森噪声和失真。把磁阻元件放置在磁头的后缝隙处避免了热噪声。采用铁氧体磁芯,保证了好的耐磨性和高清晰度。本文研究了反馈的作用、实际的制作过程和采用磁反馈后磁头的性能。
Magnetoresistive effect has been made using high-fidelity playback head. By magnetic feedback, the Barkhausen noise and distortion of the magnetoresistive element are significantly reduced. Placing the magnetoresistive element at the back gap of the head avoids thermal noise. Ferrite core to ensure good wear resistance and high definition. This paper studies the effects of feedback, the actual fabrication process, and the performance of the magnetic head with magnetic feedback.