AES E-Library

AES E-Library

Rapid Prediction of Polyester Magnetic Tape Playability Using Water Contact Angles

Document Thumbnail

The playability and degradation of polyester magnetic media has been an ongoing concern for decades for audio curators, technicians, and hobbyists. As these collections continue to age, users increasingly desire to transfer their contents. However, such a task can be daunting. This report presents a new, rapid, nontechnical tool for evaluating the playability and physical surface of polyester magnetic tapes without needing to place them on playback equipment or use expensive technical instrumentation. Water contact angle, using a micro liter-sized droplet, was found to accurately predict the physical playback condition of the vast majority of tapes from a sampling of test tapes from the Library of Congress testing labs. This tool provides an appealingly simple and powerful method to directly probe a tape's physical surface. Results could frequently be interpreted by eye, without needing technical processing equipment or software.

Author:
Affiliation:
JAES Volume 67 Issue 12 pp. 953-960; December 2019
Publication Date:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=20706

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

DOI:

Start a discussion about this paper!


AES - Audio Engineering Society