Absolute distance measurement using frequency-scanning interferometry based on hilbert phase subdivision
文献类型：期刊论文
| 作者 | Jiang, Shuo1,2; Liu, Bo2; Wang, Huachuang2; Zhao, Bin2 |
| 刊名 | Sensors (Switzerland)
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 19期号:23 |
| 关键词 | frequency-scanning interferometry distance measurement Hilbert phase subdivision |
| ISSN号 | 1424-8220 |
| DOI | 10.3390/s19235132 |
| 文献子类 | 期刊论文 |
| 英文摘要 | In order to eliminate the influence of laser frequency nonlinearity, the frequency-scanning interferometry (FSI) often uses the beat signal of an auxiliary interferometer as the external clock. The time points at every amplitude peaks and bottoms of the auxiliary beat signal are selected as the sampling time points for the main interferometer signal. To satisfy the Nyquist sampling requirement, the optical path difference (OPD) of the delay fiber in auxiliary interferometer should be at least twice longer than the measurement distance. In this paper, we proposed a method to shorten the length of delay fiber. The Hilbert transform was used to extract the phase of the auxiliary interference signal and calculate the time points corresponding to subdivided phase intervals. Then, the main interference signal was resampled at these moments, and the fast Fourier transform was performed on the resampled signal. The experimental results showed that the target at the distance of about 5 m was measured when the OPD of the auxiliary interferometer was about 4.5 m. The standard deviation of the distance measurement results could reach 4.64 µm. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. |
| WOS研究方向 | Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000507606200075 |
| 出版者 | MDPI AG, Postfach, Basel, CH-4005, Switzerland |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9808]  |
| 专题 | 空天部 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing; 100049, China; 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China |
| 推荐引用方式 GB/T 7714 | Jiang, Shuo,Liu, Bo,Wang, Huachuang,et al. Absolute distance measurement using frequency-scanning interferometry based on hilbert phase subdivision[J]. Sensors (Switzerland),2019,19(23). |
| APA | Jiang, Shuo,Liu, Bo,Wang, Huachuang,&Zhao, Bin.(2019).Absolute distance measurement using frequency-scanning interferometry based on hilbert phase subdivision.Sensors (Switzerland),19(23). |
| MLA | Jiang, Shuo,et al."Absolute distance measurement using frequency-scanning interferometry based on hilbert phase subdivision".Sensors (Switzerland) 19.23(2019). |
入库方式： OAI收割
来源：光电技术研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。