基于CAN总线的GaAs光电阴极制备测控系统  

Preparation test controlling system of GaAs photocathodes based on CAN bus

作　　者：邹继军[1] 冯林[1] 林刚勇[1] 常本康[2] 

机构地区：[1]东华理工大学 [2]南京理工大学,南京210094

出　　处：《微计算机信息》2007年第19期71-73,共3页Control & Automation

基　　金：教育部高等学校博士点基金资助项目(20050288010)

摘　　要：为了监控GaAs光电阴极的制备过程,设计了一套应用CAN总线的GaAs光电阴极制备测控系统,系统由USB-CAN转换器、多信息量测控设备和计算机等组成,可在线实时测试阴极制备过程中的光电流、真空度和铯(氧)源电流信息,或由计算机控制铯(氧)源电流的大小和通断。该系统具有结构简单、可靠性和性价比高的特点,具有良好的应用前景。In order to monitor GaAs photocathodes preparation, a multi- information test controlling system of GaAs photocathodes based on CAN bus is designed, which comprises USB- CAN converter, multi- information test controlling instruments and computer. The system can be used to test photocurrent, vacuum pressure, currents of cesium source and oxygen source during preparation pro- cess, or control currents of cesium source and oxygen source. This system has these characteristics, such as simple structure, high re- sponsibility, advanced performance price rate, and wide applications.

关 键 词：CAN总线 测控系统 GAAS光电阴极 多信息量 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]