| 真空腔测量空气折射率的方法及精度分析 |
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| 引用本文： | 李东光,张国雄. 真空腔测量空气折射率的方法及精度分析[J]. 光学技术, 2000, 26(6): 499-501 |
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| 作者姓名： | 李东光 张国雄 |
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| 作者单位： | 1. 北京理工大学,机电工程学院,北京,100081
2. 天津大学,精密仪器及电子工程学院,天津,300072 |
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| 摘 要： | 空气折射率的测量及补偿效果在高精度激光干涉测量中起着“瓶颈”作用。分析了空气折射率的补偿原理 ,研究了用预抽气真空腔测量和补偿空气折射率的测量原理、方法及装置 ,分析了该方法对测量误差产生的原因。最后对测量精度作出了估计。
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| 关 键 词： | 激光干涉测量 空气折射率 补偿 精度分析 |
| 修稿时间： | 2000-04-27 |
Measuring refractive index of air by using a pre-evacuated airtight sealed cavity and its accuracy analysis |
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| LI Dong-guang,ZHANG Guo-xiong. Measuring refractive index of air by using a pre-evacuated airtight sealed cavity and its accuracy analysis[J]. Optical Technique, 2000, 26(6): 499-501 |
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| Authors: | LI Dong-guang ZHANG Guo-xiong |
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| Affiliation: | LI Dong guang 1,ZHANG Guo xiong 2 |
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| Abstract: | The compensation effect for refractive index of air is the “bottle neck” factor in improving the accuracy of interferometric measurement The theory of compensation for refractive index of air is analyzed An interferometric device to measure the refractive index of air without air evacuation in the measuring process is studied A pre evacuated airtight sealed cavity with 45° slope is employed Some reasons to cause the measurement error are analyzed and the measurement accuracy is evaluated |
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| Keywords: | interferometry refractive index of air compensation accuracy analysis |
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