Design of real-time data acquisition system for interferometer-based electron density diagnostics on EAST

doi:10.1063/5.0043874

	Design of real-time data acquisition system for interferometer-based electron density diagnostics on EAST
	Yao, Y.1; Li, W.1; Zhang, Y.1; Song, Y.2; Liu, H.1,3; Jie, Y.1
刊名	REVIEW OF SCIENTIFIC INSTRUMENTS
	2022-03-01
卷号	93
ISSN号	0034-6748
DOI	10.1063/5.0043874
通讯作者	Yao, Y.(yyao@ipp.ac.cn)
英文摘要	Laser-aided interferometers are employed as the common diagnostics for electron density measurements. On the EAST (Experimental Advanced Superconducting Tokamak), we have four main electron density diagnostics-the far-infrared hydrogen cyanide interferometer, polarimeter/interferometer, carbon dioxide (CO2) dispersion interferometer, and solid-state source interferometer. For interferometers, the phase difference brought by the change in electron density can be acquired via mixers. A real-time data acquisition (DAQ) system is needed to calculate the highly precise density values. In this paper, a field-programmable gate array is employed to implement the system with fast Fourier transform-based demodulation technology. A highly precise analog/digital converter is employed for readout and digitization of the waveform including multiple frequency signals from high-performance Schottky mixers. The system has been simulated, and the results show that it can meet the requirements of the accuracy of interferometers on the EAST. Furthermore, the framework of the DAQ system also offers a reference of the data processing method to the future laser-aided interferometers.& nbsp;Published under an exclusive license by AIP Publishing.
资助项目	Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01-001228] ; ASIPP Foundation[DSJJ-16-GC01] ; Institute of Energy ; Hefei Comprehensive National Science Center[19KZS204] ; Major Special Science and Technology Project of Anhui Province[912188707023] ; National Key R&D Program of China[11975231]
WOS研究方向	Instruments & Instrumentation ; Physics
语种	英语
出版者	AIP Publishing
WOS记录号	WOS:000784333800005
资助机构	Comprehensive Research Facility for Fusion Technology Program of China ; ASIPP Foundation ; Institute of Energy ; Hefei Comprehensive National Science Center ; Major Special Science and Technology Project of Anhui Province ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131418]
专题	中国科学院合肥物质科学研究院
通讯作者	Yao, Y.
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Anhui Elect Engn Profess Tech Coll, Hefei 230022, Anhui, Peoples R China 3.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Yao, Y.,Li, W.,Zhang, Y.,et al. Design of real-time data acquisition system for interferometer-based electron density diagnostics on EAST[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2022,93.
APA	Yao, Y.,Li, W.,Zhang, Y.,Song, Y.,Liu, H.,&Jie, Y..(2022).Design of real-time data acquisition system for interferometer-based electron density diagnostics on EAST.REVIEW OF SCIENTIFIC INSTRUMENTS,93.
MLA	Yao, Y.,et al."Design of real-time data acquisition system for interferometer-based electron density diagnostics on EAST".REVIEW OF SCIENTIFIC INSTRUMENTS 93(2022).