Abstract:

The development of a distributed data acquisition system with low cost to implement high speed data collection through the campus networks for a small tokamak, KT5C, is presented. Data of 512 k bytes at 5MHz from 5 channels for each can be collected during about 10s after three researchers at different positions demand this system for acquisitions. This system realizes long distance multiuser operations, virtually efficiency of the data acquisition is enhanced.

Key words: Data acquisition;TCPPIP, Socket, Double-buffer, Driver;Tokamak experiment

摘要：

介绍了小型磁约束环装置KT5C 上利用校园高速局域网络, 低成本实现的分布式高速数据采集系统。当在不同位置的三个用户同时发送采集请求时, 该系统能在10 秒左右完成每个用户5 个通道的采样频率为5MHz采样长度为512kB 的数据采集。实现了远程多用户同时操作, 提高了大量实验数据的采集效率。

关键词: 数据采集, TCPPIP, 套接口, 双缓冲, 驱动程序, 托卡马克实验