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Mutual interference effect of a rosette eddy current array sensor for quantitative crack monitoring in metallic structures

机译：花环涡流阵列传感器在金属结构定量裂纹监测中的相互干扰作用

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摘要

The in-situ monitoring of crack damage due to fatigue in metallic bolted-joint aircraft structures is a critical challenge for structural health monitoring (SHM) systems to achieve active control of aircraft safety. In order to analyse the mutual interference effect of a rosette eddy current array sensor, a crack monitoring system and an equivalent sensor model were established. The sensor output transimpedance was analysed under conditions where only a single channel worked and where multiple channels worked simultaneously. As the drive current frequency increased, the amplitude of the transimpedance also increased, whereas the phase of the transimpedance decreased initially before then increasing. The results obtained from the model indicate the existence of mutual interference between the channels, which changes the amplitude and phase of the transimpedance, but there is little effect on the trends in the corresponding parameters that vary with the drive frequency condition. Thereafter, a crack monitoring experiment was performed to validate the sensor capability of crack propagation monitoring.
机译：金属螺栓连接飞机结构中疲劳引起的裂纹损坏的现场监测对于结构健康监测（SHM）系统实现对飞机安全性的主动控制至关重要。为了分析玫瑰花形涡流阵列传感器的相互干扰效应，建立了裂纹监测系统和等效的传感器模型。在仅单个通道工作且多个通道同时工作的条件下分析了传感器输出跨阻。随着驱动电流频率的增加，跨阻的幅度也增大，而跨阻的相位则先减小，然后再增大。从模型获得的结果表明，通道之间存在相互干扰，从而改变了跨阻的幅度和相位，但是对随驱动频率条件而变化的相应参数的趋势影响很小。此后，进行裂纹监测实验以验证裂纹扩展监测的传感器功能。

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  • 来源
    《Insight》 |2018年第9期|495-500|共6页
  • 作者

    Li Peiyuan; Cheng Li; He Yuting; Du Jinqiang; Jiao Shengbo; Gao Junyu;

  • 作者单位

    Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian, Shaanxi, Peoples R China;

    Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian, Shaanxi, Peoples R China;

    Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian, Shaanxi, Peoples R China;

    Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian, Shaanxi, Peoples R China;

    Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian, Shaanxi, Peoples R China;

    Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian, Shaanxi, Peoples R China;

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

    eddy currents; sensors; condition monitoring; failure diagnosis; fatigue;

    机译：涡流;传感器;状态监测;故障诊断;疲劳;

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