Title :
High speed multi input VME acquisition system
Author :
Loureiro, C.F.M. ; Combo, A.M.C.F. ; Simões, J. Basilio ; Correia, C.M.B.A. ; Silva, A.
Author_Institution :
Dept. de Fisica, Coimbra Univ., Portugal
Abstract :
An implementation of an architecture designed to lower the problems associated with finite data acquisition memories and relatively high undesired dead times, usually found in high energy experiments, is presented. The architecture allows up to four similar data acquisition channels, capable of acquiring continuously up to 3 Mbytes of data at a 250 MHz sampling rate, to be housed in a single width double height VME bus module. Provision is made to operate the channels in an interleaved way, achieving higher sampling rates. The module will be the basis of an upgrade of the dedicated data acquisition system for the reflectometry diagnostic on the Asdex-Upgrade tokamak
Keywords :
Fastbus; Tokamak devices; data acquisition; fusion reactor instrumentation; fusion reactors; plasma diagnostics; system buses; 250 MHz; 3 Mbyte; Asdex-Upgrade tokamak; architecture; dead times; finite data acquisition memories; high energy experiments; high speed multiinput VME acquisition system; reflectometry diagnostic; sampling rates; single width double height VME bus module; Data acquisition; Data processing; Digital signal processors; Logic programming; Process control; Programmable logic arrays; Reflectometry; Sampling methods; Tokamaks; Variable speed drives;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591037
