A large memory VME data acquisition system for the jet heterodyne radiometer upgrade

被引：1
|
作者：
Cruz, N [1 ]
Sousa, J
Pereira, R
Combo, A
Varandas, CAF
Beldishevski, M
Dorling, S
Alper, B
机构：
[1] Univ Tecn Lisboa, Inst Super Tecn, EURATOM Assoc, Ctr Fusao Nucl, P-1049001 Lisbon, Portugal
[2] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
来源：
FUSION ENGINEERING AND DESIGN | 2004年 / 71卷 / 1-4期
关键词：
data acquisition; VMEBus; transient recorder; CGI; HTTP server; JET;
D O I：
10.1016/j.fusengdes.2004.04.029
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
A large memory VME data acquisition system was developed for the JET heterodyne radiometer upgrade, which is capable of acquiring/storing 576 MB of data per JET pulse. The implementation of the system integration software, which includes a CGI-based control interface and the data acquisition software is described as well as the development and architecture of the transient recorders. The system maximum data throughput is 288 MB/s when all the 48 channels acquire at the maximum rate of 3 MSPS. The system hardware is composed by the following components: (i) A VME controller module, with a Pentium III processor running Linux, 128 MB of RAM, 100 Mbits/s Ethernet channel and a 40 GB disk; (ii) Six on-site-developed transient recorder modules, each having 8 input channels, 12 bit resolution, 6 MSample/channel of memory and sampling rate up to 3 MSPS. Optimal VME device drivers were developed to minimize the data transfer time to the local disk. The acquired data on disk is remotely available through a HTTP server. The system has been reliably in operation since January 2003. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：167 / 173
页数：7
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