| 丝杠精度动态检测系统设计及其不确定度分析 |
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| 引用本文： | 孟兆新,李志伟,孙丽萍,徐宇.丝杠精度动态检测系统设计及其不确定度分析[J].大连铁道学院学报,2010(1):1-4. |
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| 作者姓名： | 孟兆新 李志伟 孙丽萍 徐宇 |
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| 作者单位： | 东北林业大学机电工程学院;中国船舶重工集团公司第703研究所; |
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| 摘 要： | 针对传统的丝杠精度静态检测方法测量效率低、人为误差大的特点，设计了以双频激光干涉仪作为长度基准，圆光栅作为角度基准的丝杠精度动态检测系统．根据行业相关标准，简化行程变动量的求解过程，对丝杠的导程误差进行描述，并通过轴向位置数学模型对检测系统的不确定度进行了分析，为判定系统的检测精度提供了依据．试验表明系统可以对丝杠副进行准确快速的精度检测，其不确定度为2μm／m．
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| 关 键 词： | 双频激光干涉仪 丝杠副 导程误差 不确定度 |
Design and Uncertainty Analysis of Dynamic Detecting Measurement System for Lead Screw Accuracy |
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| MENG Zhao-xin,LI Zhi-wei,SUN Li-ping,XU Yu.Design and Uncertainty Analysis of Dynamic Detecting Measurement System for Lead Screw Accuracy[J].Journal of Dalian Railway Institute,2010(1):1-4. |
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| Authors: | MENG Zhao-xin LI Zhi-wei SUN Li-ping XU Yu |
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| Institution: | 1.College of Electromechanical Engineering;Northeast Forestry University;Harbin 150040;China;2.NO.703 Research Institute of CSIC;Harbin 150036;China |
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| Abstract: | Owing to the defects of static detecting measurements of lead screw which are widely applied at present,an improved dynamic detecting system is designed.The system employs a two-frequency laser interferometer as length benchmark and a round raster as angle benchmark.According to the existing standards,the solution procedure of stroke argument is simplified to reduce computation.Furthermore,uncertainty is analyzed based on axial position model in order to evaluate detection accuracy of system.Experiment resu... |
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| Keywords: | two-frequency laser interferometer lead screw lead error uncertainty |
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