| 基于龙基光栅塔尔博特效应的长焦距测量 |
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| 引用本文： | 侯昌伦,白剑,侯西云,杨国光.基于龙基光栅塔尔博特效应的长焦距测量[J].光学学报,2002,22(11):328-1330. |
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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,杭州,310027 |
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| 基金项目： | 中国工程物理院合同项目 |
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| 摘 要： | 提出通过对龙基光栅的塔尔博特效应所产生的莫尔条纹角度的计量来测量长焦距的方法。并在此基础上推导了长焦距的计算公式，分析了这种方法的测量误差。这种长焦距测量方法具有实时测量、精度高的特点。
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| 关 键 词： | 长焦距 龙基光栅 塔尔博特效应 莫尔条纹 测量方法 测量误差 |
| 收稿时间： | 2001/11/7 |
The Measurement of Long Focal Length Based on Talbot Effect of Ronchi Grating |
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| Hou Changlun,Bai Jian,Hou Xiyun,Yang Guoguang.The Measurement of Long Focal Length Based on Talbot Effect of Ronchi Grating[J].Acta Optica Sinica,2002,22(11):328-1330. |
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| Authors: | Hou Changlun Bai Jian Hou Xiyun Yang Guoguang |
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| Abstract: | A new method for long focal length measurement is presented, which is accomplished by obtaining the angle of moiré stripe formed by Talbot effect of Ronchi grating. The formula of calculating the long focal length from the angle of Moiré 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 Moiré stripe focal length measurement |
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