Unidirectionally Sensitive Flexible Resistance Strain Sensor Based on AgNWs/PDMS  

作　　者：LIU Xinyue SUN Weiming HE Mengfan FANG Yuan DJOULDE Aristide DLING Wei LIU Mei MENG Lingjun WANG Zhiming 刘欣悦;孙唯铭;何梦凡;方远;丁卫;刘梅;孟令军;王志明

机构地区：[1]School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200444,China [2]State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou 310058,China [3]School of Instrument and Electronics,North University of China,Taiyuan 030051,China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2025年第2期209-219,共11页上海交通大学学报(英文版)

基　　金：the Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems(No.GZKF-202219);the Belt and Road Joint Laboratory on Measurement and Control Technology(No.MCT202306)。

摘　　要：The fexible strain sensor has found widespread application due to its excellent fexibility,extensibility,and adaptability to various scenarios.This type of sensors face challenges in direction identification owing to strong coupling between the principal strain and transverse resistance.In this study,a silver nanowires(Ag-NWs)/polydimethylsiloxane(PDMS)strain sensor was developed,using a filtration method for preparing the AgNWs film which was then combined with PDMS to create a unidirectional,highly sensitive,fast-responsive,and linear fexible strain sensor.When the grid width is 0.25 mm,the AgNWs/PDMS strain sensor demonstrates an outstanding unidirectional sensitivity,with a strain response solely along the parallel direction of the grid lines(noise ratioα≈8%),and a fast reaction time of roughly 106.99 ms.In the end,this sensor's ability to detect curvature was also demonstrated through LEDs,demonstrating its potential applications in various fields,including automotive,medical,and wearable devices.

关 键 词：fexible strain sensor silver nanowires(AgNWs) polydimethylsiloxane(PDMS) unidirectional sensitivity 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]