| 全光纤低相干光纤位移传感技术 |
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| 引用本文： | 李力,王春华.全光纤低相干光纤位移传感技术[J].光学学报,1997,17(9):265-1269. |
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| 作者姓名： | 李力 王春华 |
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| 作者单位： | 上海大学光纤所 |
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| 摘 要： | 提出并演示了一种由两光纤构成的杨氏干涉解调系统的全光纤低相干光纤位移传感器系统。该技术从根本上避免了光源频率、光强的波动，及光在传输过程中由系统带来的损耗、光的偏振方向的改变引起的信号衰落问题。其结构简单，易于调整，测量分辨率可达０．０５４ｍｍ。
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| 关 键 词： | 光纤传感器 干涉仪 干涉图样 位移测量 |
| 收稿时间： | 1996/6/6 |
All Fiber Displacement Optical Fiber Sensor by Weak Coherence |
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| Li Li,Wang Chunhua,Huang Zhaoming.All Fiber Displacement Optical Fiber Sensor by Weak Coherence[J].Acta Optica Sinica,1997,17(9):265-1269. |
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| Authors: | Li Li Wang Chunhua Huang Zhaoming |
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| Abstract: | An all fiber Weak coherent optical fiber sensor(OFS) system for displacement measurement with a fiber Young′s decoding interferometer is proposed and demonstrated. The OFS of this kind avoids the fatale signal fading problem in whole coherence OFS, which is caused by the fluctuation of source wavelength and power, power loss in propagation, as well as the changes of polarization direction. The OFS system is not only of simple structure, easy adjustment, but also with high resolution up to 0.054 mm. |
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| Keywords: | optical fiber sensor interferometer coherence interferogram |
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