| 自动补偿低零漂积分器设计 |
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| 引用本文： | 王勇,季振山,罗家融.自动补偿低零漂积分器设计[J].计算机测量与控制,2006,14(4):530-532. |
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| 作者姓名： | 王勇 季振山 罗家融 |
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| 作者单位： | 中科院,等离子体物理研究所,安徽,合肥,230031 |
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| 基金项目： | 国家发展和改革委员会资助项目 |
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| 摘 要： | 传统模拟积分器存在着零点漂移、非线性误差和泄漏等问题，通过对其进行的深入调研，给出了实际积分电路的误差分析；提出一种自动补偿零漂的方法，采用CPLD控制时序，给出了两种实现方案，并对这两种方案做了比较；设计的积分器在100 s内漂移很低，在此基础上，提出了一种改进型积分器。比单个积分器效果更好，能够满足现有HT-7超导托卡马克实验的需要。
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| 关 键 词： | 积分器 漂移 自动补偿 |
| 文章编号： | 1671-4598（2006）04-0530-03 |
| 收稿时间： | 2005-08-13 |
| 修稿时间： | 2005-09-10 |
Design of Low Drift Integrators with Auto-Compensation |
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| Wang Yong,Ji Zhenshan,Luo Jiarong.Design of Low Drift Integrators with Auto-Compensation[J].Computer Measurement & Control,2006,14(4):530-532. |
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| Authors: | Wang Yong Ji Zhenshan Luo Jiarong |
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| Affiliation: | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | There are some problems with analog integrator, such as drift, nonlinear error and capacity leakage. Through an in- depth study of it, the theoretical analysis of real analog integrator is given in detail. A method of auto--compensatlon is presented. The sequence is controlled by CPLD. Two scheme of realization were given and compared in detail. By using compensation, the integrators drift is very low in 100s. Then an improved integrator is presented, which is better than the single one and can satls~y the requirements of the experiment on HT--7 superconducting Tokamak. |
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| Keywords: | CPLD |
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