Flexible Arc-Shaped Micro-Fiber Bragg Grating Array Three-Dimensional Tactile Sensor for Fingertip Signals Detection and Human Pulse Monitoring.

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Applied Materials & Interfaces Pub Date : 2024-08-14 Epub Date: 2024-07-31 DOI:10.1021/acsami.4c08909

Zongyu Chen, Bo Dong, Qi Shao, Chao Wang, Yaqi Tang, Xiong Li, Pofeng Lin, Yulong Wang

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Abstract

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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用于指尖信号检测和人体脉搏监测的柔性弧形微纤维布拉格光栅阵列三维触觉传感器。

本文介绍了一种用于指尖信号检测和人体脉搏监测的柔性弧形微光纤布拉格光栅（mFBG）阵列三维触觉传感器。它基于嵌入在弧形聚（二甲基硅氧烷）（PDMS）弹性体中的三个微光纤布拉格光栅阵列，通过监测三个微光纤布拉格光栅的反射强度变化，可有效分辨法向力、左侧力和右侧力。与传统的 FBG 传感器不同，这种传感器通过检测光强度的变化来测量力，有效避免了温度变化对传感器性能的波长交叉敏感影响。这种设计策略简化了传感器结构，降低了系统复杂性和信号查询成本，提高了可靠性和实用性。通过系统实验，我们成功验证了传感器的卓越性能，实现了 0.01 N 的最小检测力，为实际应用提供了可靠的数据支持。此外，该传感器还被用于精确监测人体脉搏。该传感器的成功制造和实验验证为其在机器人感知和人体生命信号检测等领域的广泛应用奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.