光纤布拉格光栅
材料科学
触觉传感器
信号(编程语言)
传感器阵列
声学
光纤传感器
灵敏度(控制系统)
探测理论
栅栏
计算机科学
波长
光学
电子工程
光电子学
机器人
纤维
人工智能
探测器
工程类
电信
物理
机器学习
复合材料
程序设计语言
作者
Zongyu Chen,Bo Dong,Qi Shao,Chao Wang,Yaqi Tang,Xiong Li,Pofeng Lin,Yulong Wang
标识
DOI:10.1021/acsami.4c08909
摘要
A flexible arc-shaped micro-Fiber Bragg Grating (mFBG) array three-dimensional tactile sensor for fingertip signal detection and human pulse monitoring is presented. It is based on a three mFBGs array which is embedded in an arc-shaped poly (dimethylsiloxane) (PDMS) elastomer, which can effectively discriminate the normal force, left force, and right force by monitoring the reflected intensity variation of the three mFBGs. Different from the traditional FBG sensors, this sensor measures force by detecting changes in light intensity, effectively avoiding the wavelength cross-sensitivity impact of temperature variations on the sensor performance. This design strategy simplifies the sensor structure, reduces the system complexity and signal interrogation cost, and enhances reliability and practicality. Through systematic experiments, we successfully validated the sensor's superior performance, achieving a minimum detection force of 0.01 N and providing robust data support for practical applications. In addition, the sensor has been used to monitor human pulse accurately. The successful fabrication and experimental validation of this sensor lay a foundation for its widespread application in fields such as robot perception and human vital signal detection.
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