摘要
本文介绍了一种适合科学研究的精密光点测试系统 ,它采用脉冲方法刷新光点 ,并且刷新频率与电源频率保持同步 ;着重介绍阴极脉冲放大器为阴极提供一个脉冲、保证和帧同步在屏上产生一个光斑。阴极脉冲电路由脉冲发生器 ,延时电路 ,驱动输出电路及保护电路组成。
A precise measurement system for spot size is presented, The cathode pulse amplifier is used in this system, in which the synchronizing signal is kept with the main power for oversoming the errors influenced by the stay electronic and magnetic field. A cathode pulse amplifier is designed to offer the cathode pulse, which produces a spot pulse on the screen synchronized with the camera. It consists of a pulse generator, a delay circuit, a driving circuit, an output circuit, a clamping circuit and a safety circuit.
出处
《电子器件》
CAS
2000年第4期281-285,共5页
Chinese Journal of Electron Devices
