| 光纤非接触加速度计 |
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| 引用本文： | 张仲先 李泽仁. 光纤非接触加速度计[J]. 光学学报, 1995, 15(6): 29-832 |
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| 作者姓名： | 张仲先 李泽仁 |
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| 作者单位： | 浙江大学光电科仪系，中国工程物理研究院流体物理研究所 |
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| 基金项目： | 中国工程物理院院外基金 |
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| 摘 要： | 介绍一种新型光纤接触加速度。入射激光经长短不同的两光纤，在两个不同的时间对物体同一点的速度取样，由物体返回的光束经偏振光实现长短光路互易成近于等光程干涉，利用外差技术测量多普勒频差得到物的加速度值。
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| 关 键 词： | 加速度计 光纤干涉仪 时间延迟干涉仪 |
| 收稿时间： | 1994-03-31 |
A Novel Optical Fiber Non-Contact Accelerometer |
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| Zhang Zhongxian, Xu Xiangdong. A Novel Optical Fiber Non-Contact Accelerometer[J]. Acta Optica Sinica, 1995, 15(6): 29-832 |
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| Authors: | Zhang Zhongxian Xu Xiangdong |
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| Abstract: | A novel non-contact fiber optic accelerometer is presented. The velocity of a moving target is sampled at different times by two beams originating from the same laser but with different feed path lengths. The acceleration of the target is measured by heterodyning the two Doppler shifted return beams. By directing each return beam to the detector via the feed path taken by the other beam, equal path lengths are ensured relaxing the coherency requirements of the light source. |
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| Keywords: | accelecrometer optical fiber interferometer time delay interferometer. |
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