超细纤维
光纤布拉格光栅
光学
可穿戴计算机
弯曲
节点(物理)
材料科学
结构健康监测
灵敏度(控制系统)
光纤
计算机科学
声学
电子工程
物理
嵌入式系统
工程类
复合材料
作者
Ruyi Lu,Yue Xu,Qiaochu Yang,Enlai Song,Bo Peng,Yang Ran
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2024-01-29
卷期号:32 (6): 8496-8496
被引量:7
摘要
Flexibly wearable sensors are widely applied in health monitoring and personalized therapy. Multiple-node sensing is essential for mastering the health condition holistically. In this work, we report a multi-node wearable optical sensor (MNWOS) based on the cascade of microfiber Bragg gratings (µFBG), which features the reflective operation mode and ultra-compact size, facilitating the functional integration in a flexible substrate pad. The MNWOS can realize multipoint monitoring on physical variables, such as temperature and pressure, in both static and dynamic modes. Furthermore, the eccentric package configuration endows the MNWOS with the discernibility of bending direction in addition to the bending angle sensing. The multi-parameter sensing is realized by solving the sensing matrix that represents different sensitivity regarding the bending and temperature between FBGs. The MNWOS offers great prospect for the development of human-machine interfaces and medical and health detection.
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