Recording Surface Of A Metal Particle Audio Tape

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Magnetic Recording: Analog Tape - Stanford University

https://ccrma.stanford.edu/~jay/subpages/Lectures/Lecture7-Magnetic_recording.pdf#:~:text=The%20recording%20process%20The%20record%20head%20converts%20an,gap%2C%20rather%20than%20over%20the%20entire%20gap%20length.

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Midterm Examination - Answers

http://galileo.phys.virginia.edu/classes/106/1997/midterm_answers.html

The recording surface of a metal particle audio tape contains tiny particles of (A) copper. (B) aluminum. (C) brass. (D) iron. Answer: (D) iron. Why: Of the metals listed, only iron is intrinsically magnetic--it is composed of atoms that retain their magnetism even as part of the solid. The other metals have no magnetic order at all as solids.

A study on high-density recording with particulate …

https://www.aist.go.jp/pdf/aist_e/synthesiology_e/vol10_no1/vol10_01_p24_p33.pdf

BaFe tape, which is a major technological innovation for the magnetic tape industry. 2 History of magnetic tape 2.1 Use of magnetic tape Magnetic recording was first introduced in 1898, with the invention of the magnetic recording device by Valdemar Poulsen, a Danish scientist working on audio recording.

A High-Density Recording Study on Particulate Magnetic ...

https://asset.fujifilm.com/www/jp/files/2019-12/05ca94e4e3481f769f50aa1d295c5bc9/ff_rd061_004_en.pdf

A High-Density Recording Study on Particulate Magnetic Tape using Barium Ferrite Magnetic Particles. We have developed an advanced barium ferrite tape with a magnetic particle volume of 1600 nm3; a surface roughness Ra of 0.9 nm, as determined by optical interferometry; a 10-point average roughness Rz of 27 nm, as determined by atomic force microscopy, and a …

High density digital recording on 4 mm metal particle and ...

https://www.sciencedirect.com/science/article/pii/030488539391279G

In this study we compare the recording performance of 4 mm metal particle (MP) and Ba-ferrite (BF) tapes using helical scan digital audio tape (DAT) mechanisms and heads. At low bit densities the MP tapes have higher output signal and SNR compared with the BF tapes, but at high bit densities the reverse is true.

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