| 干涉测距系统中的光程定位 |
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| 引用本文： | 洪海涛 叶声华. 干涉测距系统中的光程定位[J]. 光学精密工程, 1999, 7(1): 110-115 |
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| 作者姓名： | 洪海涛 叶声华 |
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| 作者单位： | [1]上海交通大学信息检测技术及仪器系 [2]天津大学精仪学院 |
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| 摘 要： | 提出一个由定位干涉仪和测量干涉仪两部分组成的光纤干涉距离测量系统,并采用标准长度光纤实现量程倍增以增大测量范围。文中重点讨论了用准单色光源脉冲电流调制干涉实现光程定位的方法及其精度,通过理论分析和仿真实验可知,定位重复性误差优于±1μm.
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| 关 键 词： | 光纤干涉 绝对测距 光程定位 脉冲电流调制 |
| 收稿时间： | 1998-01-19 |
| 修稿时间： | 1998-01-19 |
Research on the Positioning Method for Interferometer System of Absolute Distance Measurement |
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| HONG Hai Tao ,YE Sheng Hua. Research on the Positioning Method for Interferometer System of Absolute Distance Measurement[J]. Optics and Precision Engineering, 1999, 7(1): 110-115 |
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| Authors: | HONG Hai Tao YE Sheng Hua |
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| Affiliation: | HONG Hai Tao 1,YE Sheng Hua 2 |
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| Abstract: | In the paper,we put forward a new optic fiber interferometer to measure absolute distance consisted of a positioning interferometer and a measuring interferometer,and use the optic fiber having pre-known length to enlarge the measuring range of the system.Meanwhile,we discuss the method and the accuracy of the optic path positioning of the system in detail.In theoretical analysis and experimental research,the positioning repeatablity error is ±1μm. |
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| Keywords: | Optic fiber interferometer Absolute distance measurement Optic path positioning Current modulation |
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