目前国外不少带有 CRT 的仪器都采用数字存贮显示技术,它主要用于显示慢变化的信号,我们所了解到其直接工作频率可达10MHz。其主要优点是:a.图象清晰、无闪动,b.仪器操作简便,c.图象可以长期存贮,并可随时调出。其主要工作原理是:把被显示的视频信号与扫描信号分别通过 A/D 变换器,变成数字量,把视频信号(?)量逐点(?)”入按扫描信号的数字量编址的 RAM 体内,从而 At present, many foreign countries with CRT devices use digital storage display technology, which is mainly used to display slow changes in the signal, we have learned that its direct operating frequency up to 10MHz. Its main advantages are: a. The image is clear, no flashing, b. The instrument is easy to operate, c. The image can be stored for a long time, and can be transferred at any time. The main working principle is: the video signal and the scan signal are displayed through the A / D converter, into a digital quantity, the video signal (?) By point (?) "Into the digital signal by the scan signal Of RAM body, thus