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Simultaneous Measurement for Strain and Temperature Using Fiber Bragg Gratings and Multimode Fibers

机译：使用光纤布拉格光栅和多模光纤同时测量应变和温度

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摘要

An all-fiber sensor capable of simultaneous measurement of temperature and strain is newly presented. The sensing head is formed by a fiber Bragg grating combined with a section of multimode fiber that acts as a Mach-Zehnder interferometer for temperature and strain discrimination. The strain and temperature coefficients of multimode fibers vary with the core sizes and materials. This feature can be used to improve the strain and temperature resolution by suitably choosing the multimode fiber. For a 10 pm wavelength resolution, a resolution of 9.21 μ∈ in strain and 0.26°C in temperature can be achieved.

机译：新提出了一种能够同时测量温度和应变的全光纤传感器。传感头由光纤布拉格光栅与多模光纤的一部分结合而成，该多模光纤充当用于温度和应变识别的马赫曾德尔干涉仪。多模光纤的应变和温度系数随纤芯尺寸和材料而变化。通过适当选择多模光纤，此功能可用于提高应变和温度分辨率。对于10 pm的波长分辨率，可以实现9.21με的应变分辨率和0.26°C的温度分辨率。

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Zhou, Da-Peng; Wei, Li; Liu, Wing-Ki; Lit, John W.Y.;
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年度 2008
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专利

1. Simultaneous measurement for strain and temperature using fiber Bragg gratings and multimode fibers [J] . Zhou DP, Wei L, Liu WK, Applied optics . 2008,第10期

机译：使用光纤布拉格光栅和多模光纤同时测量应变和温度
2. Simultaneous measurement of strain, temperature and refractive index based on multimode interference, fiber tapering and fiber Bragg gratings [J] . Oliveira Ricardo, Osorio Jonas H., Aristilde Stenio, Measurement Science & Technology . 2016,第7期

机译：基于多模干涉，光纤渐缩和光纤布拉格光栅，同时测量应变，温度和折射率
3. Numerical Analysis of the Hybrid Photonic Crystal Fiber and Single Mode Fiber/Fiber Bragg Grating Sensor for Simultaneous Measurement of Temperature and Strain [J] . Fabio Barros de Sousa, Fiterlinge Martins de Sousa, Jorge Everaldo de Oliveira, Journal of computational and theoretical nanoscience . 2019,第2期

机译：混合光子晶体纤维和单模光纤/光纤布拉格光栅传感器的数值分析，用于同时测量温度和应变
4. Fiber Bragg grating with long-period fiber grating superstructure for simultaneous strain and temperature measurement [C] . Heather J. Patrick, Naval Research Lab., Washington, European workshop on optical fibre sensors . 1998

机译：具有长周期光纤光栅上部结构的光纤布拉格光栅，可同时测量应变和温度
5. Fiber Bragg grating (FBG) sensors for the simultaneous measurements of strain and temperature [D] . Singh, Abhay Kumar. 2016

机译：光纤布拉格光栅（FBG）传感器，用于同时测量应变和温度
6. Simultaneous Measurement of Temperature and Mechanical Strain Using a Fiber Bragg Grating Sensor [O] . Shiuh-Chuan Her, Wei-Nan Lin 2020

机译：使用光纤布拉格光栅传感器同时测量温度和机械应变
7. Use of dual-grating sensors formed by different types of fiber Bragg gratings for simultaneous temperature and strain measurements [O] . Shu, Xuewen, Zhao, Donghui, Zhang, Lin, 2004

机译：使用由不同类型的光纤布拉格光栅形成的双光栅传感器同时进行温度和应变测量
8. Simultaneous Strain and Temperature Measurement Using a Single Fiber Bragg Grating Coated with a Thermochromic Material. [R] . Huang, H. 2017

机译：用热致变色材料涂覆单光纤布拉格光栅同时测量应变和温度。

Simultaneous Measurement for Strain and Temperature Using Fiber Bragg Gratings and Multimode Fibers

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