P225．2 2005042642 提高脉冲鉴相激光近炸引信定距精度技术研究=Research of improving the precision for phase laser proximity fuze [刊,中]／纪铁刚(南京理工大学机械电子工程系．江苏,南京(210094)),张河…／／激光杂志,-2004,25...P225．2 2005042642 提高脉冲鉴相激光近炸引信定距精度技术研究=Research of improving the precision for phase laser proximity fuze [刊,中]／纪铁刚(南京理工大学机械电子工程系．江苏,南京(210094)),张河…／／激光杂志,-2004,25(6),-11-12 介绍了一般激光定距引信的工作原理,当引信在逐渐接近目标的过程中,弹目距离的变化,对目标回波幅度也将造成很大的影响,据此分析了产生定距误差的原因,依此提出了利用辅助发射频率来提高定距精度的方法,该方法对提高激光近炸引信定距精度具有指导作用。图3表1 参5(严寒)展开更多
In order to improve the process precision of an XY laser annealing table, a geometric error modeling, and an identification and compensation method were proposed. Based on multi-body system theory, a geometric error m...In order to improve the process precision of an XY laser annealing table, a geometric error modeling, and an identification and compensation method were proposed. Based on multi-body system theory, a geometric error model for the laser annealing table was established. It supports the identification of 7 geometric errors affecting the annealing accuracy. An original identification method was presented to recognize these geometric errors. Positioning errors of 5 lines in the workspace were measured by a laser interferometer, and the 7 geometric errors were identified by the proposed algorithm. Finally, a software-based error compensation method was adopted, and a compensation mechanism was developed in a postprocessor based on LabVIEW. The identified geometric errors can be compensated by converting ideal NC codes to actual NC codes. A validation experiment has been conducted on the laser annealing table, and the results indicate that positioning errors of two validation lines decreased from ±37 μm and ±33 μm to ±5 μm and ±4.5 μm, respectively. The geometric error modeling, identification and compensation method presented in this work can be straightforwardly extended to any configurations of 2-dimensional worktable.展开更多
基金Supported by Jilin Key Science and Technology Research Fund(130202GX010012794)National Natural Science Foundation of China(61077024,11474037)Specialized Research Fund for the Doctoral Program of Higher Education of China(20112216120005)
文摘P225．2 2005042642 提高脉冲鉴相激光近炸引信定距精度技术研究=Research of improving the precision for phase laser proximity fuze [刊,中]／纪铁刚(南京理工大学机械电子工程系．江苏,南京(210094)),张河…／／激光杂志,-2004,25(6),-11-12 介绍了一般激光定距引信的工作原理,当引信在逐渐接近目标的过程中,弹目距离的变化,对目标回波幅度也将造成很大的影响,据此分析了产生定距误差的原因,依此提出了利用辅助发射频率来提高定距精度的方法,该方法对提高激光近炸引信定距精度具有指导作用。图3表1 参5(严寒)
基金Projects(2012ZX04010-011,2009ZX02037-02) supported by the Key National Science and Technology Project of China
文摘In order to improve the process precision of an XY laser annealing table, a geometric error modeling, and an identification and compensation method were proposed. Based on multi-body system theory, a geometric error model for the laser annealing table was established. It supports the identification of 7 geometric errors affecting the annealing accuracy. An original identification method was presented to recognize these geometric errors. Positioning errors of 5 lines in the workspace were measured by a laser interferometer, and the 7 geometric errors were identified by the proposed algorithm. Finally, a software-based error compensation method was adopted, and a compensation mechanism was developed in a postprocessor based on LabVIEW. The identified geometric errors can be compensated by converting ideal NC codes to actual NC codes. A validation experiment has been conducted on the laser annealing table, and the results indicate that positioning errors of two validation lines decreased from ±37 μm and ±33 μm to ±5 μm and ±4.5 μm, respectively. The geometric error modeling, identification and compensation method presented in this work can be straightforwardly extended to any configurations of 2-dimensional worktable.
