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Shape monitoring of morphing wing using micro optical sensors with different embedded depth

机译：使用具有不同嵌入深度的微型光学传感器监测变形机翼的形状

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摘要

Considering the complex and variability of flight environment of the morphing aircraft, usually it is difficult to solve the real-time wing shape monitoring problem when the aircraft changes its motion state or suffering the wind and waves. In this paper, with the goal of supporting real-time wing shape monitoring of morphing aircraft, three-dimensional (3D) shape monitoring of polyimide film skin for morphing wing based on the embedded Fiber Bragg Grating (FBG) sensor is designed and analyzed. Firstly, the sensitively of FBG sensors with different embedded depth in the polyimide film was analyzed, and the finding is that when the ratio value of upper/lower embedded depth is larger, the sensitively of FBG sensor is higher. Secondly, the wavelength of FBG sensors at different states were obtained, and the center wavelength shift of FBG sensors can be used to measure the bending curvatures of the wing, besides, according to the obtained bending curvatures, the 3D shape of polyimide skin of the morphing wing at different deformation states are reconstructed through interpolation and curve fitting functions. Moreover, several shape reconstruction experiments of the morphing wing were carried out with precise visual measurement, and the maximum error between FBG sensing and visual measurement is 5%. Consequently, the effectiveness of FBG sensing method for wing shape monitoring of morphing aircraft is demonstrated, as well as more potentiality and applicability for the shape monitoring in the field of soft robotics and flexible biosensor monitoring.
机译：考虑到变形飞机飞行环境的复杂性和可变性，通常在飞机改变运动状态或遭受风浪影响时很难解决实时机翼形状监测问题。为了支持变形飞机的实时机翼形状监测，设计并分析了基于嵌入式光纤布拉格光栅（FBG）传感器的聚酰亚胺薄膜蒙皮的三维（3D）形状监测。首先，分析了聚酰亚胺膜中埋深不同的FBG传感器的灵敏度，发现当上下埋深比值较大时，FBG传感器的灵敏度较高。其次，获得了不同状态下的光纤光栅传感器的波长，并利用光纤光栅传感器的中心波长偏移来测量机翼的弯曲曲率，此外，根据获得的弯曲曲率，可以得到聚酰亚胺蒙皮的3D形状。通过插值和曲线拟合功能重构了不同变形状态下的变形机翼。此外，对变形机翼进行了多次形状重建实验，并进行了精确的视觉测量，FBG感应和视觉测量之间的最大误差为5％。因此，证明了FBG传感方法在变形飞机机翼形状监测中的有效性，以及在软机器人技术和柔性生物传感器监测领域中形状监测的更大潜力和适用性。

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  • 来源
    《Optical fiber technology》 |2019年第3期|179-185|共7页
  • 作者

    He Yanlin; Dong Mingli; Sun Guangkai; Meng Fanyong; Song Yanming; Zhu Lianqing;

  • 作者单位

    Beijing Informat Sci & Technol Univ, Key Lab, Minist Educ Optoelect Measurement Technol & Instr, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Beijing Lab Opt Fiber Sensing & Syst, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Overseas Expertise Intro Ctr Discipline Innovat 1, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Bion & Intelligent Equipment Lab, Beijing, Peoples R China;

    Beijing Informat Sci & Technol Univ, Key Lab, Minist Educ Optoelect Measurement Technol & Instr, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Beijing Lab Opt Fiber Sensing & Syst, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Overseas Expertise Intro Ctr Discipline Innovat 1, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Bion & Intelligent Equipment Lab, Beijing, Peoples R China;

    Beijing Informat Sci & Technol Univ, Key Lab, Minist Educ Optoelect Measurement Technol & Instr, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Beijing Lab Opt Fiber Sensing & Syst, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Overseas Expertise Intro Ctr Discipline Innovat 1, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Bion & Intelligent Equipment Lab, Beijing, Peoples R China;

    Beijing Informat Sci & Technol Univ, Key Lab, Minist Educ Optoelect Measurement Technol & Instr, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Beijing Lab Opt Fiber Sensing & Syst, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Overseas Expertise Intro Ctr Discipline Innovat 1, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Bion & Intelligent Equipment Lab, Beijing, Peoples R China;

    Beijing Informat Sci & Technol Univ, Key Lab, Minist Educ Optoelect Measurement Technol & Instr, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Beijing Lab Opt Fiber Sensing & Syst, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Overseas Expertise Intro Ctr Discipline Innovat 1, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Bion & Intelligent Equipment Lab, Beijing, Peoples R China;

    Beijing Informat Sci & Technol Univ, Key Lab, Minist Educ Optoelect Measurement Technol & Instr, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Beijing Lab Opt Fiber Sensing & Syst, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Overseas Expertise Intro Ctr Discipline Innovat 1, Beijing, Peoples R China|Beijing Informat Sci & Technol Univ, Bion & Intelligent Equipment Lab, Beijing, 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

    Soft robotic sensor; Shape reconstruction; Fiber Bragg Gratings; Sensitivity; Micro optical sensor;

    机译：软机械传感器;形状重建;光纤布拉格光栅;灵敏度;微光学传感器;

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