| 模糊自适应PID算法在核磁共振谱仪样品旋转控制系统中的应用 |
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| 引用本文： | 林超力,刘鸿飞,孙惠军,郑振辉,陈忠.模糊自适应PID算法在核磁共振谱仪样品旋转控制系统中的应用[J].分析化学,2011,39(4):506-510. |
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| 作者姓名： | 林超力 刘鸿飞 孙惠军 郑振辉 陈忠 |
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| 作者单位： | 厦门大学物理系福建省等离子体与磁共振研究重点实验室;厦门大学通信工程系; |
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| 基金项目： | 国家科技支撑计划(No.2006BAK03A22); 国家博士后基金(No.20090460750)资助 |
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| 摘 要： | 在核磁共振(NMR)实验中,样品旋转能够有效消除 XY 方向磁场的部分不均匀性,从而提高信号分辨率.在商用NMR谱仪中,一般采用PID算法进行待测样品的旋转控制.由于被控对象具有一定的非线性,存在着调节时间较长,稳定后存在误差等缺点.针对该现象,在Varian 500 MHz波谱仪气路系统的基础上,设计一套新的控制电路...
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| 关 键 词： | 核磁共振波谱仪 气控系统 模糊PID 样品旋转 自适应 |
Implementation of Fuzzy Self-tuning Proportional Integral Derivative Controller on Sample-tube Spin Control System in Nuclear Magnetic Resonance Spectrometer |
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| LIN Chao-Li,LIU Hong-Fei,SUN Hui-Jun,ZHENG Zhen-Yao,CHEN Zhong.Implementation of Fuzzy Self-tuning Proportional Integral Derivative Controller on Sample-tube Spin Control System in Nuclear Magnetic Resonance Spectrometer[J].Chinese Journal of Analytical Chemistry,2011,39(4):506-510. |
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| Authors: | LIN Chao-Li LIU Hong-Fei SUN Hui-Jun ZHENG Zhen-Yao CHEN Zhong |
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| Institution: | LIN Chao-Li1,2,LIU Hong-Fei1,SUN Hui-Jun1,ZHENG Zhen-Yao1,CHEN Zhong1 1(Department of Physics,Xiamen University,Xiamen 361005)2(Department of Communication Engineering,Xiamen 361005) |
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| Abstract: | In commercial nuclear magnetic resonance(NMR) spectrometer,a PID controller is generally used to regulate the rotation of samples.There are some faults such as long adjustment time,steady-state error because of the nonlinear character of the object.To improve system performance,a new pneumatic controller system was proposed by using self-tuning fuzzy proportional-integral-derivative(PID) controller to replace the original pneumatic system based on PID.The adjustment time of proposed controller is about 30 s... |
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| Keywords: | Nuclear magnetic resonance spectrometer Pneumatic system Fuzzy proportiona-lintegral-derivative controller Spin Self-tuning |
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