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一 引言 众所周知,用于显示器件的电子束管的偏转系统有二种,即静电偏转和磁偏转系统。在显示系统中应该选用磁偏转系统还是静电偏转系统,这要根据显示系统的要求来确定。在比较考究的显示系统中例如雷达、声纳以及计算机编辑中往往需要迅速存取符号并随时与实时数据混合显示(例如雷达视频信号)。这种显示系统常常要求采用大屏幕大偏转角的管子,这时选择电磁偏转系统要比静电偏转系统有更多的优点:
I. INTRODUCTION It is well known that there are two kinds of deflection systems for electron beam tubes used in display devices, that is, electrostatic deflection and magnetic deflection systems. In the display system should be selected magnetic deflection system or electrostatic deflection system, which should be based on the display system to determine the requirements. In more sophisticated display systems, such as radar, sonar, and computer editing, it is often necessary to quickly access symbols and display them at any time, such as radar video signals, in real time. This display system often requires the use of large-screen large deflection angle of the tube, then select the electromagnetic deflection system than the electrostatic deflection system has more advantages: