EAST装置电场数据采集与分析系统
The Data Acquisition and Analysis System of The EAST Device Electric Field
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摘要: 根据EAST (超导托卡马克装置)实验需求,为了全面监测EAST放电时装置周围的电场变化,设计了以LabVIEW为软件开发平台的多通道EAST装置电场数据采集系统,该系统采用FlexRIO系列数据采集板卡进行高速数据采集,并采用磁盘阵列进行数据存储,结合虚拟仪器技术与高速数据流盘技术,实现了16个模拟通道同步数据采集、存储与显示,系统采样精度为14位,采样率可达25 MHz,数据流盘速率高达800 MB/s.经测试,该系统性能稳定,抗干扰性强,完全满足EAST装置周围电场的数据采集需求.Abstract: According to the EAST (Experimental Advanced Superconducting Tokamak) experiment needs,in order to fully monitoring the changes of the electric field around the EAST device during plasma discharge,a multichannel data acquisition system of electric field around the EAST device was designed with LabVIEW software development platform.It uses the FlexRIO Series Data acquisition board for high-speed data acquisition,and the disk arrays for data storage.It has the ability of the 16 analog channel synchronous data acquisition,storage and display combined with the virtual instrument technology and high-speed data streaming technology.The system sampling precision is 14 bits,this sampling rate is up to 25 MHz,data streaming rates can be 800M/s.By testing,the system is stable,strong anti-interference,and can fully meet the needs of data acquisition of the electric field around the EAST device.
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