Determination of the Recording Performance of a Tape from Its Magnetic Properties

Levine I, Daniel ED. Determination of the Recording Performance of a Tape from Its Magnetic Properties. In: AES Convention 10. Audio Engineering Society; 1958. Paper 45. Available from: https://aes.org/publications/elibrary-page/?id=175

@inproceedings{Levine1958_175,
  author = {Levine, Irving and Daniel, Eric D.},
  title = {{Determination of the Recording Performance of a Tape from Its Magnetic Properties}},
  booktitle = {AES Convention 10},
  note = {Paper 45},
  year = {1958},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=175}
}

TY  - CPAPER
TI  - Determination of the Recording Performance of a Tape from Its Magnetic Properties
AU  - Levine, Irving
AU  - Daniel, Eric D.
T2  - AES Convention 10
M1  - Paper 45
PY  - 1958
DA  - 1958/09/06
UR  - https://aes.org/publications/elibrary-page/?id=175
PB  - Audio Engineering Society
LA  - en
AB  - It has been shown by Westmijze that the process of anhysteretic or ideal magnetization is closely analogous to the ordinary hf biased magnetic recording process. Measurements of the anhysteretic properties of thirteen different tape types have yielded results which can all be fitted to a universal curve. Only two simple magnetic measurements are necessary to adjust the scales of this curve to suit any particular tape. Using a simple expression for the longitudinal field distribution of a ring typ'recording head and the universal curve, numerical integrations have been carried out to determine the bias for maximum output and the recording sensitivity for the above tapes, under long wavelength conditions. Absolute measurements performed on an actual recording machine are in good agreement as far as the values of maximal bias are concerned. In order to account for self demagnetization during the record process a semi-empirical corection to the computed values of recording sensitivity is necessary. The corrected recording sensitivities are in good agreement with the measured values. This paper will describe in detail the equipment, measurements, and curves necessary to determine the performance of magnetic recording tape at long wavelengths.
ER  -