The investigations conducted in the area of plasma physics and controlled nuclear fusion are character ized by continuous complication of the diagnostic procedures and, as a result, call for continuous expan sions of the functional capabilities and improvements of the metrological performance of the recording equipment. For the latest decade, many diagnostic systems have been equipped with multichannel syn chronous data acquisition units based on fast recorders with an expanded (up to 12-14 bits) amplitude dynamic range of analog to digital conversion sec tions. The recording equipment intended for some diagnostics includes specialized digital flow oriented data processing assemblies.At the experimental data analysis stage, the above total solutions allowed one to exclude labor consum ing procedures of the interpolation processing and matching of the time coordinates of digital oscillo grams and to obtain results of measurements of the plasma parameters in the real time mode [1][2][3][4][5].In the latest time period, due to the substantial increase in the plasma confinement time in magnetic traps, volumes of information arrays stored by the recorders rapidly rise. These devices are coming into use as sources of information on current plasma parameters in new applications, e.g., in discharge con trol subsystems, which stabilize plasma filament posi tions in the magnetic trap, support its shape and den sity, and suppress magnetohydrodynamic and kinetic instabilities.To solve these problems, the recorders must not only fix amplitude-time characteristics of transducer signals, but also form and transmit the results of mea surements of the current plasma parameters to con trollers of control subsystems in the real time mode.The approach that simplifies the solution to these problems involves the following operations:(i) direct matching of the recording and control equipment by using wideband communication chan nels; and (ii) transfer of the procedures for preliminary pro cessing of the primary experimental data flow to the level of recorders, e.g., in their auxiliary digital assem blies based on FPGAs.In the context of it, it has been possible to perform the following tasks:(i) eliminate the nonlinear relationship between characteristics of the sensor signals of different diag nostics and the actual plasma parameters;(ii) filter parasitic noise components of the initial signals; and (iii) normalize results of measurements and effi ciently compress the volumes of output data flows from many diagnostic sections.The preferred version for designing digital assem blies of the fast recorders with a flexible functional potential is the FPGA application. This is specified by a high logic capacity and a high speed of operation of programmable arrays, the simplicity of designing on their basis digital flow oriented data processing assemblies with a high degree of parallelization of ele mentary operations, operating in the real time mode. The significant argument in favor of this version is that the implementation of the remote ...
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