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基于纤维的微型应变传感器,具有快速响应和低歇斯底里

Ruixuan Wang¹, Tong Qiu¹, Yujing Zhang¹

¹Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA, 24061, USA.

Advanced functional materials

|December 23, 2024

概括

一个新的可伸缩光纤传感器克服了软传感器的局限性,为可穿戴技术和安全监控提供了高分辨率和快速响应. 这种先进的应变传感器增强了性能跟踪和结构完整性评估.

科学领域:

材料科学材料科学材料科学
传感器技术传感器技术
机械工程机械工程

背景情况:

灵活和可拉伸的应变传感器对于运动表现监测,结构健康监测和生物医学用途等应用至关重要.
现有的基于聚合物材料的软传感器往往表现出高歇斯底里,低耐用性和缓慢的响应时间,限制了它们的实际效用.
对于能够克服这些局限性的先进伸缩传感器有很大的需求.

研究的目的:

开发一种具有增强性能特性的可拉伸式微型纤维传感器.
解决当前软应变传感器的缺点,包括歇斯底里,耐用性和响应速度.
探索开发的传感器在可穿戴设备和安全监控系统中的潜在应用.

主要方法:

一个可伸缩的微型纤维传感器是使用一个可伸缩的核心紧紧卷着平行导电线进行制造的.
电容传感器响应使用衍生分析表达式进行分析.
实验验证和数值模拟进行,以确认传感器的性能.
传感器被集成到可穿戴设备 (皮带,手套,膝盖保护器) 和监控系统 (膀,安全绳) 中.

主要成果:

开发的光纤传感器展示了灵活性,伸展性和低hysteresis.
它实现了0.015%的高理论分辨率和不到30毫秒的快速响应时间.
传感器表现出优异的稳定性,持续超过16000个测试周期.
电容传感器响应的分析表达式与实验和模拟结果有很好的一致性.

结论:

新型可伸缩的微型纤维传感器与现有的软传感器相比,提供了卓越的性能.
它的高分辨率,快速响应和耐用性使其适用于苛刻的应用.
通过成功集成到可穿戴设备和监控系统中,证实了传感器的多功能性.
这项技术对体育表现评估,医疗监测和结构安全评估具有重大前景.

关键词:

容量传感器容量传感器应变传感器应变传感器可伸缩传感器伸缩传感器结构健康监测结构健康监测可穿戴设备是可以穿戴的.

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