Abrasive Al/sub 2/O/sub 3/ 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.
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机译：Al / sub 2 / O / sub 3 /磨料带用于加速消费型螺旋扫描视频记录器中视频记录头的磨损。研究磨损痕迹的发展与时间的关系，并使用光学显微镜测量磨损痕迹的长度增加。确定纵向和横向头部半径的变化与时间的关系，并研究头部磨损与扫描器窗口中头部位置的关系。结果表明，砂带的使用是加速螺旋扫描头磨损的有效工具。
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