基于PXI的EAST中央定时系统的实现  

Development of the EAST Central Timing System Based on PXI

作　　者：张祖超[1] 季振山[1] 肖炳甲[1] 王勇[1] 沈湘[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《核电子学与探测技术》2012年第12期1402-1405,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(10835009);973项目(2009GB103000)

摘　　要：中央定时系统是国家大科学工程EAST全超导托卡马克装置总控系统的重要组成部分,用于同步EAST各子系统精准投入实验的时序。该系统基于PXI工业级设备,可提供频率范围从1 Hz～80MHz的参考时钟信号,并利用RIO模件的FPGA定制板卡,产生从1 ms～6 872 s延迟触发信号;同时该系统能够采集信号,并能根据检测的信号,实时触发相应处理机制。中央定时系统运行稳定可靠,已成功应用于"2010年秋季EAST放电实验"。The Central Timing System （CTS） is an important part of the central control system on the experi- mental advanced superconducting tokamak （ EAST）, which is one of the national key fusion research projects in China. The purpose of this system is to synchronize each subsystem in EAST experiments. The CTS provides reference clock signals with frequency range from 1 Hz to 80 MHz based on PXI devices. It also produces trigger signals in pre - defined delay from 1 ms up to about 6 872 s by using FPGA on the RIO module. This system is able to acquire signal, process it and send output or command to the other system. The CTS has successfully been applied to 2010 fall EAST experiment, and the application shows that this system runs stably and accurate- ly.

关 键 词：中央定时系统 全超导托卡马克核聚变先进实验装置 面向仪器系统的PCI扩展 现场可编 程门阵列 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TL62[自动化与计算机技术—控制科学与工程]