Electronic Journal Technical Acoustics ISSN 1819-2408

V. Vangesov

Distortions of magnetic recording, caused by magnetic tape deterioration

language: Russian

received 10.01.2007, published 09.02.2007

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ABSTRACT

Magnetic recording is often used for signal registration in field observations. Measuring equipment and magnetic tape are subjected to hard usage and storage. At the same time some unique magnetic tapes are required to be kept long time. Typical distortions of magnetic recording caused by deterioration of magnetic tapes, and sources of distortions are considered in the paper. Such typical distortions are (1) transfer ratio decreasing for direct recording caused by wastage of magnetic layer, (2) amplitude and phase signal modulation caused by start-stop operations, (3) signal losses caused by adhesion disruption in tape. Some techniques for evaluation of archival magnetic tapes condition and recommendations on distortions decreasing are presented.

Keywords: magnetic recording, magnetic tape, deterioration of magnetic tape, distortions, acoustical measurements, ship acoustics

10 pages, 5 figures

Сitation: V. Vangesov. Distortions of magnetic recording, caused by magnetic tape deterioration. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2007, 6.

REFERENCES

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2. Гордеев Л. С., Фридман А. А. Аппаратура точной магнитной записи с частотной модуляцией. М.: Энергия, 1978.
3. Мазо Я. А. Магнитная лента. М.: Энергия, 1975.
4. Корольков В. Г. Испытания магнитофонов. М.: Энергия, 1965.
5. Измерительный магнитофон типа 7005. Инструкция по эксплуатации. Брюль и Къер, 1983.

Valeriy Vangesov graduated Electrotechnical University in St. Petersburg (Russia), Ph.D. from Krylov Shipbuilding Research Institute. Scientific interests: accuracy of magnetic recoding in hydroacoustic researches, acoustical measurements in shipbuilding, electro-acoustics. Presently he is senior staff scientist at Krylov Shipbuilding Research Institute.