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基于散斑图测量的光纤点式传感器。

Fiber-Optic Point-Based Sensor Using Specklegram Measurement.

作者信息

Wang Jiao-Jiao, Yan Shao-Cheng, Ruan Ya-Ping, Xu Fei, Lu Yan-Qing

机构信息

College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China.

出版信息

Sensors (Basel). 2017 Oct 24;17(10):2429. doi: 10.3390/s17102429.

DOI:10.3390/s17102429
PMID:29064387
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5677025/
Abstract

Here, we report a fiber-optic point-based sensor to measure temperature and weight based on correlated specklegrams induced by spatial multimode interference. The device is realized simply by splicing a multimode fiber (MMF) to a single-mode fiber (SMF) with a core offset. A series of experiments demonstrates the approximately linear relation between the correlation coefficient and variation. Furthermore, we show the potential applications of the refractive index sensing of our device by disconnecting the splicing point of MMF and SMF. A modification of the algorithm in order to improve the sensitivity of the sensor is also discussed at the end of the paper.

摘要

在此，我们报告一种基于空间多模干涉产生的相关散斑图来测量温度和重量的光纤点式传感器。该装置通过将具有纤芯偏移的多模光纤（MMF）与单模光纤（SMF）拼接而成。一系列实验证明了相关系数与变化之间的近似线性关系。此外，通过断开MMF和SMF的拼接点，我们展示了该装置在折射率传感方面的潜在应用。本文末尾还讨论了为提高传感器灵敏度而对算法进行的修改。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/9e2c9b0c5dc3/sensors-17-02429-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/564c0834d9dd/sensors-17-02429-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/ddd346665a8e/sensors-17-02429-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/97eb60f6362f/sensors-17-02429-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/be1e4aebece8/sensors-17-02429-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/f895921964c8/sensors-17-02429-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/fd6a7470d763/sensors-17-02429-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/b24599b2abc1/sensors-17-02429-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/9e2c9b0c5dc3/sensors-17-02429-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/564c0834d9dd/sensors-17-02429-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/ddd346665a8e/sensors-17-02429-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/97eb60f6362f/sensors-17-02429-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/be1e4aebece8/sensors-17-02429-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/f895921964c8/sensors-17-02429-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/fd6a7470d763/sensors-17-02429-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/b24599b2abc1/sensors-17-02429-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d117/5677025/9e2c9b0c5dc3/sensors-17-02429-g008.jpg

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