要想对DVD实现全面的品质控制,必须对其电信号及物理信号进行检测。在线检测仪被集成在光盘复制线上,用来检测光盘局部缺损及测量光盘物理特性,如翘曲、盘基及间隔层厚度。当前,一般而言,电信号的检测是在一定的间隔时间内,通过离线检测仪对 To achieve a comprehensive quality control of the DVD, you must test its electrical and physical signals. The on-line detector is integrated into the disc duplicating line to detect disc defects and measure disc physical characteristics such as warpage, disc base and spacer thickness. At present, in general, the detection of electrical signals is at a certain interval of time, through the offline detector