Stretchable distributed fiber-optic sensors
Stretchable distributed fiber-optic sensors
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DOI：
10.1126/science.aba5504
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发表时间：
2020-11-13
期刊：
影响因子：
56.9
通讯作者：
Shepherd, Robert F.
中科院分区：
文献类型：
--
作者：
Bai, Hedan;Li, Shuo;Shepherd, Robert F.
基于二氧化硅的分布式光纤传感器（DFOS）系统已经成为一种强大的工具，用于传感不可扩展结构中的应变、压力、振动、加速度、温度和湿度。然而，DFOS系统与软机器人和可拉伸电子产品相关的大应变不兼容。我们开发了一种传感器组成的平行组件的弹性光导，将连续或离散的彩色图案。通过利用受抑全内反射和吸收的组合，可拉伸DFOS可以区分和测量机械变形的位置、幅度和模式（拉伸、弯曲或挤压）。我们进一步展示了多位置解耦和多模态变形解耦通过一个可伸缩的DFOS集成的无线手套，可以重新配置所有类型的手指关节运动和外部压力同时，只有一个传感器在真实的时间。
Silica-based distributed fiber-optic sensor (DFOS) systems have been a powerful tool for sensing strain, pressure, vibration, acceleration, temperature, and humidity in inextensible structures. DFOS systems, however, are incompatible with the large strains associated with soft robotics and stretchable electronics. We develop a sensor composed of parallel assemblies of elastomeric lightguides that incorporate continuum or discrete chromatic patterns. By exploiting a combination of frustrated total internal reflection and absorption, stretchable DFOSs can distinguish and measure the locations, magnitudes, and modes (stretch, bend, or press) of mechanical deformation. We further demonstrate multilocation decoupling and multimodal deformation decoupling through a stretchable DFOS-integrated wireless glove that can reconfigure all types of finger joint movements and external presses simultaneously, with only a single sensor in real time.