首页 | 本学科首页   官方微博 | 高级检索  
     


Research on the phase adjustment method for dispersion interferometer on HL-2A tokamak
Affiliation:1. State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, People's Republic of China;2. Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China;3. Southwestern Institute of Physics, Chengdu 610041, People's Republic of China
Abstract:A synchronous demodulation system is proposed and deployed for CO2 dispersion interferometer on HL-2A,which aims at high plasma density measurements and real-time feedback control.In order to make sure that the demodulator and the interferometer signal are synchronous in phase,a phase adjustment (PA) method has been developed for the demodulation system.The method takes advantages of the field programmable gate array parallel and pipeline process capabilities to carry out high performance and low latency PA.Some experimental results presented show that the PA method is crucial to the synchronous demodulation system and reliable to follow the fast change of the electron density.The system can measure the lineintegrated density with a high precision of 2.0 × 1018 m-2.
Keywords:plasma diagnosis   FPGA   real-time   electron density  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《等离子体科学和技术》浏览原始摘要信息
点击此处可从《等离子体科学和技术》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号