| 基于激光自混合散斑干涉的微小流量检测 |
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| 引用本文： | 伊鹏宇,王世博,张子超,马恺,孙翰文,张婷婷,姜春雷.基于激光自混合散斑干涉的微小流量检测[J].吉林大学学报(信息科学版),2020,38(1):107-110. |
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| 作者姓名： | 伊鹏宇 王世博 张子超 马恺 孙翰文 张婷婷 姜春雷 |
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| 作者单位： | 1． 东北石油大学，电气信息工程学院，黑龙江大庆163318; 2． 廊坊中燃宏胜能源科技有限公司工程技术部，河北廊坊065000 |
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| 摘 要： | 为实现对激光自混合散斑干涉的微小流量的检测，提出了一种基于激光自混合散斑干涉检测方法。
通过检测得到自混合散斑干涉信号，并对信号进行频谱分析得到流体的平均频率，利用平均频率与流速的拟合
直线进一步获得流量与平均频率的关系，从而精确求解流体微小流量。理论分析和实验表明，该方法可以简单
高效测量微小流量，测量相对误差小于1． 13%。
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| 关 键 词： | 激光自混合 散斑干涉 平均频率 微小流量 |
| 收稿时间： | 2019-07-11 |
Detection of Small Flow Based on Laser Self-Mixing Speckle Interference |
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| YI Pengyu,WANG Shibo,ZHANG Zichao,MA Kai,SUN Hanwen,ZHANG Tingting,JIANG Chunlei.Detection of Small Flow Based on Laser Self-Mixing Speckle Interference[J].Journal of Jilin University:Information Sci Ed,2020,38(1):107-110. |
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| Authors: | YI Pengyu WANG Shibo ZHANG Zichao MA Kai SUN Hanwen ZHANG Tingting JIANG Chunlei |
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| Institution: | 1． School of Electrical Engineering and Information，Northeast Petroleum University，Daqing 163318，China;
2． Engineering and Technology Department，Langfang Zhongran Hongsheng Energy Technology Company Limited，Langfang 065000，China
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| Abstract: | In order to realize the detection of small flow in laser self-mixing speckle interference，a self-mixing
speckle interference detection method based on laser is proposed． The method relies on the self-mixing speckle
interference signal obtained by the detection，the average frequency of the fluid is obtained by spectrum analysis
of the signal，and the average frequency is utilized． The line of fit with the flow rate further obtains the
relationship between the flow rate and the average frequency to accurately solve the small flow of the fluid．
Theoretical analysis and experiments show that the method can measure small flow easily and efficiently，and the
relative error of measurement is less than 1． 13%． |
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| Keywords: | laser self-mixing speckle interference average frequency small flow |
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