Study on the best arrangement of sensors used in the deformation measurement of active lap based on Genetic Algorithm
文献类型：会议论文
| 作者 | Zhao, Hongshen1,2; Li, Xiaojin1; Zeng, Zhige1 |
| 出版日期 | 2012 |
| 会议名称 | Proceedings of SPIE: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies |
| 会议日期 | 2012 |
| 卷号 | 8416 |
| 页码 | 84161Y |
| 通讯作者 | Zhao, H. |
| 中文摘要 | The deformation measurement of active lap before being used to polish the mirror is one of the key factors that restrict the mirror's quality. Usually micro displacement sensors are used to measure the deformation. The sensors are located on a square grid or a circle array, but different arrangements of sensor array bring different accuracies. Which arrangement is the best for the measuring is unknown at present. A method of calculating the best arrangement of the sensor array is put forward. Firstly, Zernike polynomial is used to represent and reconstruct the lap surface, meanwhile, the variables concerned such as the number of sensor circles and the sensor number of each circle are shown. Secondly, we choose the RMS of measurement error as the standard to judge whether an arrangement is better or worse. Thirdly, Genetic Algorithm is widely used in optimization, especially in the optimization with a lot of variables. Here using the Genetic Algorithm we can successfully achieve a better arrangement of the sensors after some generations' evolution. The result shows that using the optimized arrangement can improve the measurement accuracy. Examples shown can prove the theory is correct. © 2012 SPIE. |
| 英文摘要 | The deformation measurement of active lap before being used to polish the mirror is one of the key factors that restrict the mirror's quality. Usually micro displacement sensors are used to measure the deformation. The sensors are located on a square grid or a circle array, but different arrangements of sensor array bring different accuracies. Which arrangement is the best for the measuring is unknown at present. A method of calculating the best arrangement of the sensor array is put forward. Firstly, Zernike polynomial is used to represent and reconstruct the lap surface, meanwhile, the variables concerned such as the number of sensor circles and the sensor number of each circle are shown. Secondly, we choose the RMS of measurement error as the standard to judge whether an arrangement is better or worse. Thirdly, Genetic Algorithm is widely used in optimization, especially in the optimization with a lot of variables. Here using the Genetic Algorithm we can successfully achieve a better arrangement of the sensors after some generations' evolution. The result shows that using the optimized arrangement can improve the measurement accuracy. Examples shown can prove the theory is correct. © 2012 SPIE. |
| 收录类别 | EI |
| 语种 | 英语 |
| ISSN号 | 0277786X |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/7585]  |
| 专题 | 光电技术研究所_先光中心 |
| 作者单位 | 1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, 610209, China 2.Graduate University, Chinese Academy of Sciences, Beijing, 100049, China |
| 推荐引用方式 GB/T 7714 | Zhao, Hongshen,Li, Xiaojin,Zeng, Zhige. Study on the best arrangement of sensors used in the deformation measurement of active lap based on Genetic Algorithm[C]. 见:Proceedings of SPIE: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies. 2012. |
入库方式： OAI收割
来源：光电技术研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。