A passive, flexible dual-function sensor for simultaneous pressure and sliding direction detection

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2024-11-05 DOI:10.1016/j.colsurfa.2024.135704

Nan Lv , Cheng Liu , Jiyuan Feng , Zhiwei Lyu , Yuteng Zhang , Haifeng Zhang

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引用次数: 0

Abstract

Flexible pressure and omnidirectional slide sensors show significant potential in wearable devices and robotics. However, the integration of various sensor types to achieve multi-functionality introduces challenges. Complex structures and processing difficulties limit their miniaturization and flexibility, while dependence on external power sources further constrains their practical use. Here, we report a novel strategy that utilizes a piezoelectric-conductive nanoresistance network with edge electrodes to develop an advanced pressure sensor. This sensor is capable of simultaneously detecting pressure and sliding direction through multiple-channel pulses. We demonstrate its functionality using a polyacrylonitrile/polypyrrole nanofiber membrane (PAN/PPY NFM) configured with either two or three electrodes. By exploiting the signal transmission characteristics of the nanoresistance network, the sensor simultaneously responds to both force and sliding direction through amplitude-frequency analysis of the output signals from multiple channels. Additionally, the sensor operates without an external power supply. This streamlined approach simplifies sensor design and processing, providing a promising solution for advanced touch sensing applications.

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一种无源、灵活的双功能传感器，可同时检测压力和滑动方向

柔性压力传感器和全向滑动传感器在可穿戴设备和机器人领域显示出巨大的潜力。然而，整合各种类型的传感器以实现多功能性带来了挑战。复杂的结构和加工困难限制了它们的微型化和灵活性，而对外部电源的依赖又进一步限制了它们的实际应用。在这里，我们报告了一种利用带有边缘电极的压电导电纳米电阻网络来开发先进压力传感器的新策略。这种传感器能够通过多通道脉冲同时检测压力和滑动方向。我们使用配置了两个或三个电极的聚丙烯腈/聚吡咯纳米纤维膜（PAN/PPY NFM）演示了它的功能。传感器利用纳米电阻网络的信号传输特性，通过对多通道输出信号的幅频分析，同时对力和滑动方向做出响应。此外，该传感器无需外部电源即可工作。这种精简的方法简化了传感器的设计和处理，为先进的触摸传感应用提供了前景广阔的解决方案。

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.