Distributed real-time control and data acquisition of free-electron laser beams

作     者：Moallem, M 

作者机构：Univ Western Ontario Dept Elect & Comp Engn London ON N6G 1H1 Canada 

出 版 物：《COMPUTING & CONTROL ENGINEERING JOURNAL》 (Comput Control Eng J)

年 卷 期：2001年第12卷第4期

页      面：179-187页

核心收录：

主　　题：feedback control scheme embedded controllers data acquisition modules host workstations laser beam applications real time processor modules control system modules feedback distributed real time computing environment real-time systems Computer communications Optical engineering computing Data handling techniques data acquisition electromagnetic interference electron beam Local area networks user interface distributed real time control Control engineering computing vacuum chamber local area networks free electron lasers computerised control free-electron laser beams optical engineering computing ethernet network control scheme 

摘      要：Implementation of a feedback control scheme and its associated user-interface and data acquisition modules in a distributed real-time computing environment are described. The distributed system consists of an ethernet network interconnecting real-time processor modules to host workstations and other embedded controllers. The goal of the feedback control scheme is to maintain positions of the electron beam in the middle of the vacuum chamber in the presence of electromagnetic interference and noise. Technical details of implementing the data acquisition and control scheme and their integration with the existing control system modules are presented, along with experimental results.