Title :
Accelerated wear characteristics of video heads in a helical scan system
Author :
Kim, Sookyung ; Kwon, Haesung ; Kim, Yung-Gil ; Lee, Youn-Sig ; Talke, Frank E.
Author_Institution :
Ames Dept., California Univ., San Diego, La Jolla, CA, USA
fDate :
8/1/1996 12:00:00 AM
Abstract :
Abrasive Al2O3 tape is used to accelerate wear of video recording heads in consumer helical scan video recorders. The development of the wear scar is studied as a function of time and the increase in the length of the wear scar is measured using optical microscopy. Changes in longitudinal and transverse head radii are determined as a function of time and the dependence of head wear on head position in the scanner window is studied. The results show that the use of abrasive tape is an efficient tool in the acceleration of wear of helical scan heads
Keywords :
abrasion; aluminium compounds; magnetic heads; video tape recorders; wear; Al2O3; abrasive Al2O3 tape; accelerated wear characteristics; consumer helical scan video recorders; head position; helical scan system; longitudinal head radii; optical microscopy; scanner window; transverse head radii; video heads; video recording head; wear scar; Abrasives; Acceleration; Length measurement; Life estimation; Magnetic heads; Magnetic recording; Optical microscopy; Optical recording; Time measurement; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
