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Asymmetric double-core fiber for hydraulic pressure sensing

机译：用于液压传感的非对称双芯光纤

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摘要

We propose a novel asymmetric double-core fiber (ADCF) which provides an ADCF-based hydraulic pressure sensing system without using optical spectrum measurement based on a costly optical spectrum analyzer. The ADCF is designed with asymmetric double fiber cores and two side air holes, which ensure the asymmetric pressure-induced phase change for the guiding light in the two fiber cores. Based on the finite element method, optical properties of the ADCF under hydraulic pressure are investigated considering the fiber parameters such as the refractive index, the distance of two holes or two fiber cores, the size of two fiber cores and the fiber length. A hydraulic pressure sensing system based on the ADCF and a low-cost linear array charge coupled device (CCD) is proposed, where the hydraulic pressure demodulation is achieved by measuring the movement of the spatial interference pattern of the light from the double fiber cores of the ADCF. Numerical simulation shows that the hydraulic pressure sensor based on a 10-cm ADCF and a 2.867-cm CCD has a sensing range from 0 to 900 MPa and a sensitivity of 0.3 mm/ MPa. In this paper, a low-cost CCD is used instead of a costly spectrometer, which greatly reduces the cost of the sensing system. The proposal for the ADCF and the solution for hydraulic pressure sensing are of great significance to promote the wide application of the hydraulic pressure fiber sensor.
机译：我们提出了一种新颖的非对称双芯光纤（ADCF），该光纤可提供基于ADCF的液压传感系统，而无需使用基于昂贵的光谱分析仪的光谱测量。 ADCF设计有不对称的双光纤纤芯和两个侧面气孔，可确保不对称的压力感应相变，以引导两个光纤纤芯中的导光。基于有限元方法，在考虑压力，折射率，两个孔或两个纤维芯的距离，两个纤维芯的尺寸和纤维长度等纤维参数的基础上，研究了ADCF在液压作用下的光学性能。提出了一种基于ADCF和低成本线性阵列电荷耦合器件（CCD）的液压传感系统，其中通过测量来自双芯光纤的光的空间干涉图样的移动来实现液压解调。 ADCF。数值模拟表明，基于10厘米ADCF和2.867厘米CCD的液压传感器的感应范围为0至900 MPa，灵敏度为0.3毫米/ MPa。在本文中，使用了低成本的CCD来代替昂贵的光谱仪，这大大降低了传感系统的成本。 ADCF的建议和液压传感解决方案对于促进液压纤维传感器的广泛应用具有重要意义。

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  • 来源
    《Optical fiber technology》 |2019年第3期|194-198|共5页
  • 作者

    Zhou Yan; Deng Yadong; She Lijuan; Chen Daru; Yu Zhangwei; Qiang Zexuan; Yang Wenshao;

  • 作者单位

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China|Zhejiang Normal Univ, Inst Informat Opt, Jinhua, Peoples R China;

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China|Zhejiang Normal Univ, Inst Informat Opt, Jinhua, Peoples R China;

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China|Zhejiang Normal Univ, Inst Informat Opt, Jinhua, Peoples R China;

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China|Zhejiang Normal Univ, Inst Informat Opt, Jinhua, Peoples R China;

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China|Zhejiang Normal Univ, Inst Informat Opt, Jinhua, Peoples R China;

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China|Zhejiang Normal Univ, Inst Informat Opt, Jinhua, Peoples R China;

    Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Jinhua, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Double-core fiber; Hydraulic pressure; Fiber sensor; Finite element method;

    机译：双芯纤维;液压;光纤传感器;有限元法;

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