| 基于Ronchi光栅Talbot效应的角度精确测量 |
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| 引用本文： | 侯昌伦,白剑,侯西云,杨国光. 基于Ronchi光栅Talbot效应的角度精确测量[J]. 光学仪器, 2004, 26(1): 11-14 |
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| 作者姓名： | 侯昌伦 白剑 侯西云 杨国光 |
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| 作者单位： | 浙江大学现代光学仪器国家重点实验室,浙江杭州310027;浙江大学现代光学仪器国家重点实验室,浙江杭州310027;浙江大学现代光学仪器国家重点实验室,浙江杭州310027;浙江大学现代光学仪器国家重点实验室,浙江杭州310027 |
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| 摘 要： | 提出了通过对Ronchi光栅的Talbot效应所产生的莫尔条纹周期的计量来测量小角度的方法。并在此基础上推导了角度的计算公式,分析了这种方法的测量精度。这种角度测量方法不需要转动部件且有速度快,精度高实时的特点。
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| 关 键 词： | Ronchi光栅 Talbot效应 莫尔条纹 角度测量 |
| 文章编号： | 1005-5630(2004)01-0011-04 |
| 修稿时间： | 2003-06-30 |
The accurate measurement of angle based on Talbot effect of Ronchi grating |
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| HOU Chang-lun,BAI Jian,HOU Xi-yun,YANG Guo-guangng University,Hangzhou,China. The accurate measurement of angle based on Talbot effect of Ronchi grating[J]. Optical Instruments, 2004, 26(1): 11-14 |
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| Authors: | HOU Chang-lun BAI Jian HOU Xi-yun YANG Guo-guangng University Hangzhou China |
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| Affiliation: | HOU Chang-lun,BAI Jian,HOU Xi-yun,YANG Guo-guangng University,Hangzhou 310027,China) |
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| Abstract: | A new method for small angle measurement is presented,which is accomplished by obtaining the angle of moire stripe formed by Talbot effect of Ronchi grating.The formula of calculating the long focal length from the angle of moire stripe is derived.Error analysis demonstrates that this method can be applied to the real-time testing with high accuracy. |
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| Keywords: | Ronchi grating Talbot effect moire stripe angle measurement |
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