字码管是一种新型的电子束器件,它可以直接把文字符号显示在荧光屏幕上.它的工作过程就好象一个打字机,但是字码管显示文字符号的速度是相当惊人的,目前国外一些字码管(如C19K、C7C11、C19Q、13??HC1等)每秒可显示一万到二万个文字符号,这个速度是一般的电传打字机所不及的.这类管子的分辨能力也相当高,例如型号C7C11的字码管,可以在直径150毫米的荧光屏幕上显示出字迹良好的一百行一百列共一万个文字符号.字码管适用于作高速电子计 The code tube is a new type of electron beam device, which can directly display the text symbol on the fluorescent screen, and its working process is like a typewriter, but the speed of the code tube displaying the character symbol is quite amazing. At present, Some code tubes (such as C19K, C7C11, C19Q, 13 ?? HC1, etc.) can display 10,000 to 20,000 characters per second, this speed is less than the average teletype. This type of tube also has the ability to distinguish Very high, for example, the C7C11 code tube can display a well-written 100-line and 100-line total 10,000 characters on a 150 mm diameter fluorescent screen. The code tube is suitable for high-speed electronic measurement