利用互感效应设计同轴卷绕结构的稳健型光纤应变传感器

IF 17.2 1区 工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yulu Ai, Zhen Wang, Yue Liu, Yuanyuan Zheng, Jiaqi Wu, Junyi Zou, Songlin Zhang, Peining Chen, Huisheng Peng
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引用次数: 0

摘要

具有强大传感性能的纤维应变传感器对于电子纺织品中的人机交互是不可或缺的。然而,目前的纤维应变传感器面临着功能传感元件在可穿戴和极端环境下不可避免的劣化挑战,导致稳定性和耐用性不尽如人意。在此,我们介绍一种基于互感效应的坚固纤维应变传感器。该传感器是通过在弹性聚氨酯纤维周围设计同轴螺旋线圈组装而成的。拉伸光纤传感器时,通过记录螺旋线圈中因磁通量变化而产生的电压变化来检测应变。由此产生的纤维应变传感器在 100%的大应变下显示出较高的线性度(线性回归系数为 0.99),并能承受各种极端环境条件,如高/低温(从 - 30 °C 到 160 °C),以及严重变形,如扭曲和挤压(压力为 500 N/cm)。我们的纤维应变传感器的长期循环稳定性(100,000 次循环,应变为 100%)优于大多数已报道的柔性电阻和电容应变传感器。最后,批量生产的纤维应变传感器被编织到智能纺织系统中,以准确捕捉手势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Robust Fiber Strain Sensor by Designing Coaxial Coiling Structure with Mutual Inductance Effect

Robust Fiber Strain Sensor by Designing Coaxial Coiling Structure with Mutual Inductance Effect

Fiber strain sensors with robust sensing performance are indispensable for human–machine interactions in the electronic textiles. However, current fiber strain sensors are confronted with the challenges of unavoidable deterioration of functional sensing components during wearable and extreme environments, resulting in unsatisfactory stability and durability. Here, we present a robust fiber strain sensor based on the mutual inductance effect. The sensor is assembled by designing coaxial helical coils around an elastic polyurethane fiber. When stretching the fiber sensor, the strain is detected by recording the voltage changes in the helical coils due to the variation in magnetic flux. The resultant fiber strain sensor shows high linearity (with a linear regression coefficient of 0.99) at a large strain of 100%, and can withstand various extreme environmental conditions, such as high/low temperatures (from − 30 °C to 160 °C), and severe deformations, such as twisting and pressing (with a pressure of 500 N/cm). The long-term cyclic stability of our fiber strain sensor (100,000 cycles at a strain of 100%) is superior to that of most reported flexible resistive and capacitive strain sensors. Finally, the mass-produced fiber strain sensors are woven into a smart textile system to accurately capture gestures.

Graphical Abstract

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来源期刊
CiteScore
18.70
自引率
11.20%
发文量
109
期刊介绍: Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.
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