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核聚变与等离子体物理 ›› 2009, Vol. 29 ›› Issue (3): 275-278.

• 核聚变工程技术 • 上一篇    下一篇

EAST装置交替式积分器设计

王勇, 季振山, 罗家融   

  1. (1. 中国科学院等离子体物理研究所,合肥 230031;2. 东华大学理学院,上海 200051)
  • 收稿日期:2008-09-11 修回日期:2009-03-10 出版日期:2009-09-15 发布日期:2010-08-18
  • 作者简介:王勇(1981-),男,江苏常州人,博士研究生,研究方向为微弱信号处理。
  • 基金资助:

    国家自然科学基金资助项目(10675128)

Design of alternant integrator on EAST tokamak

WANG Yong, JI Zhen-shan, LUO Jia-rong   

  1. (1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031; 2. School of Sciences, Donghua University, Shanghai 200051)
  • Received:2008-09-11 Revised:2009-03-10 Online:2009-09-15 Published:2010-08-18

摘要:

在一种自动补偿零漂积分器的基础上,设计了一种交替式积分器。该积分器把积分时间分割为短时间段,用两个自动补偿零漂积分器交替进行积分,通过累加电路将每段积分信号累加起来得到完整的积分信号。积分器采用CPLD控制时序,在400s内的漂移在10mV左右,能够满足EAST装置实验的需要。

关键词: 交替积分器, 漂移, CPLD

Abstract:

Based on a kind of low drift integrator with auto-compensation, an alternant integrator has been designed. The integral time is divided into short time segment, and two integrators are used to integrate by turn. The whole integral signal can be obtained by adding two integrators’ output continuously. Controlled by CPLD, the alternant integrator’s drift is about 10mV in 400s, which can satisfy the experiment on EAST tokamak.

Key words: Alternant integrator, Drift, CPLD

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