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随着社会经济和文化生活的不断发展和提高,录像机开始进入到千家万户。目前,大多数家用录像机都采用双视频磁头。双视频磁头录像机,在磁鼓的180对分线上安装着两个视频磁头,磁鼓以每秒25转的速度旋转,使每场图像信号记录在一条倾斜的磁迹上,即磁头相对磁带作螺旋扫描。旋转时,
With the continuous development and improvement of socio-economic and cultural life, video recorders have begun to reach millions of households. Currently, most home video recorders use dual video heads. Dual-video head recorders have two video heads mounted on 180 pairs of drums. The drum rotates at 25 revolutions per second so that each video signal is recorded on an inclined track, ie, the head is opposed to the tape Spiral scan. When rotating,