电子束扫描旋转和正交的自动调节

Automatic Adjustment of the Straight Intersection and Rotation of the E Beam Scanning Field

本文介绍ＳＤＳ—２ 电子束扫描系统。它确保了扫描系统的输出线性，减小了对偏转放大器高频响应的要求。轴向地址分辩率为１６ Ｂｉｔ，扫描场尺寸、旋转和正交性都可以自动调节。在５０—１００ ｎＳ时间内闭合一个开关产生平滑的斜坡。使扫描速度相当于逐点式扫描电子束系统的１０ＭＨｚ。

This paper describes rapid dynamic compensatinon of the SDS 2 E beam scanning system.It ensures the linearity of E beam scanning system and reduces the requirement of the deflection amplifier.The address resolution is 16 bit peraxis.All the scanning field adjustments are automatic.A smooth ramp is produced by a switch which is closed in 50 100nS period.Scanning speed of SDS 2 E beam scanning system is equivalent to 10 MHz of the digital point to point scanning.