Technique for the Examination of Contact Area of Magnetic Tapes

John G. Streiffert

When a sample of magnetic recording material is pressed against the hypotenuse of a right-angle prism, total internal reflection is destroyed where intimate contact occurs. This effect has been utilized in a unique instrument for observing, measuring and photographing the extent and distribution of the contact area obtained between samples of magnetic recording materials and an idealized flat surface.

Print ISSN
Published
1965-08
Content type
Original Research
DOI
10.5594/J06025