| 光学镜面磁流变抛光误差的频谱特征与分布特性研究 |
| |
| 引用本文： | 任定世,王贵林,彭扬林,聂徐庆.光学镜面磁流变抛光误差的频谱特征与分布特性研究[J].航空精密制造技术,2011,47(5):1-4,13. |
| |
| 作者姓名： | 任定世 王贵林 彭扬林 聂徐庆 |
| |
| 作者单位： | 国防科技大学机电工程与自动化学院,长沙,410073 |
| |
| 基金项目： | 国家自然科学基金资助项目(50975277) |
| |
| 摘 要： | 通过分析磁流变抛光误差的频谱特征,发现严重影响成像质量的敏感频率成分误差,采用二维连续小波变换算法确定出敏感频率误差的具体分布区域,分析其演变特征及其与工艺参数之间的关系,为修正加工提供指导,以实现精确控制不同频率成分、不同分布区域光学加工误差和改善成像质量的目的.
|
| 关 键 词： | 磁流变抛光 中高频误差 功率谱密度 小波 |
Study on Error Spectrum and Distributing Characteristics in Magnetorheological Finishing of Optical Mirrors |
| |
| REN Ding-shi,WANG Gui-lin,PENG Yang-lin,et al..Study on Error Spectrum and Distributing Characteristics in Magnetorheological Finishing of Optical Mirrors[J].Aviation Precision Manufacturing Technology,2011,47(5):1-4,13. |
| |
| Authors: | REN Ding-shi WANG Gui-lin PENG Yang-lin |
| |
| Institution: | REN Ding-shi,WANG Gui-lin,PENG Yang-lin,et al.(National University of Defense Technology,Changsha 410073) |
| |
| Abstract: | In modern optical systems,the notable frequency error which influences imaging quality can be found by analyzing error spectrum in the process of magnetorheological finishing.The determinate distributing area of notable frequency error may be located by using two dimensional continuous wavelet transform,the evolving feature and the relation between optical errors and machining parameters are analyzed.The guidance is provided for surface correcting of optical mirrors,the errors with different frequencies and... |
| |
| Keywords: | magnetorheological finishing medium-high frequency error power spectral density wavelet |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
