| 应用在线整定广义最小方差多项式权值的测头控制方法 |
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| 引用本文： | 邵伟,郭俊杰,周阿维.应用在线整定广义最小方差多项式权值的测头控制方法[J].西安交通大学学报,2011,45(4):100-103,114. |
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| 作者姓名： | 邵伟 郭俊杰 周阿维 |
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| 作者单位： | 西安交通大学机械工程学院,710049,西安 |
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| 基金项目： | 十一五国家科技支撑计划资助项目，国家科技重大专项课题资助项目 |
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| 摘 要： | 在曲面工件的高精度、高效率自动扫描测量过程中,为了提高测头自动跟踪扫瞄控制的精度和平稳性,提出了基于在线整定多项式权值的广义最小方差(OSPW_GMV)控制方法.该方法的主要思想是根据在线估计的被控对象参数及OSPW_GMV的输出,在线调整多项式的权值,实现测头自动跟踪扫瞄的控制.实验结果证明,使用具有高跟踪精度和强鲁棒性的OSPW_GMV控制器,可使测头跟踪过程的误差小于0.1mm的跟踪要求,且每次运算时间与广义最小方差控制器相差不大,因此该控制方法在一些实时性及控制精度要求较高的精密检测场合,有较好的应用价值.
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| 关 键 词： | 扫描测量 广义最小方差控制 在线整定 多项式权值 |
Control Strategy Based on Online Setting Polynomial Weights of Generalized Minimum Variance for Measuring Probe |
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| SHAO Wei,GUO Junjie,ZHOU Awei.Control Strategy Based on Online Setting Polynomial Weights of Generalized Minimum Variance for Measuring Probe[J].Journal of Xi'an Jiaotong University,2011,45(4):100-103,114. |
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| Authors: | SHAO Wei GUO Junjie ZHOU Awei |
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| Institution: | (School of Mechanical Engineering,Xi′an Jiaotong University,Xi′an 710049,China) |
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| Abstract: | In the process of rapid,precise scanning measurement of curved surface parts,for improving accuracy and stability in the automatic tracking controlling of probe,a generalized minimum variance strategy with online setting polynomial weights(OSPW_GMV) is introduced,where the polynomial weights can be obtained to fulfill the automatic tracking controlling of probe according to the real-time identification of plant parameters with the output of OSPW_GMV controller.The experimental results confirm the high track... |
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| Keywords: | scanning measurement generalized minimum variance control online setting polynomial weights |
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