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    科学领域:

    • 光子学和光学传感器
    • 材料科学 材料科学 材料科学
    • 仪器仪表工程 仪器仪表工程

    背景情况:

    • 具有亚毫米分辨率的分布式传感对于航空航天和制造业等行业至关重要.
    • 目前的方法在成本效益方面面临挑战,并且在没有差距的情况下实现高空间分辨率.

    研究的目的:

    • 提出和演示一种全新的分级连接覆盖纤维布拉格格 (SC-CLFBG) 阵列,用于完全分布式传感.
    • 为了在纤维布拉格格感应中实现亚毫米空间分辨率.
    • 为了验证拟议的传感配置的性能和热弹性.

    主要方法:

    • 使用秒激光直接铭文制造FBG阵列的制造.
    • 开发了一个分阶段连续的覆盖纤维布拉格格配置.
    • 实验验证传感器阵列的空间分辨率和温度性能.

    主要成果:

    • 在1.04厘米的传感长度上实现了800微米的空间分辨率.
    • 演示了第一个完全分布的FBG传感器,分辨率为亚毫米,消除了暗区.
    • 经过验证的优异性能和高达710°C的耐热性,没有歇斯底里.
    • 记录了一个最大的温度灵敏度为15.17 pm/°C.

    结论:

    • 该SC-CLFBG阵列为分毫米分布式传感提供了一种成本效益高且简单的方法.
    • 该技术显示了高信号保真度和适用于高温应用的适用性.
    • 这一进步对航空航天,生物医学工程和增材制造等要求高的传感应用具有重大前景.