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

Author

Moallem, M.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada

Volume

12

Issue

4

fYear

2001

Firstpage

179

Lastpage

187

Abstract

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.

Keywords

computerised control; data acquisition; feedback; free electron lasers; laser beam applications; local area networks; optical engineering computing; real-time systems; control scheme; control system modules; data acquisition; data acquisition modules; distributed real time computing environment; distributed real time control; electromagnetic interference; electron beam; embedded controllers; ethernet network; feedback control scheme; free-electron laser beams; host workstations; real time processor modules; user interface; vacuum chamber;

fLanguage

English

Journal_Title

Computing & Control Engineering Journal

Publisher

iet

ISSN

0956-3385

Type

jour

DOI

10.1049/cce:20010407

Filename

945453