Open Access

ARTICLE

Flexible Strain Sensor Based on 3D Electrospun Carbonized Sponge

He Gong^1,2,3, Zilian Wang^1,3, Zhiqiang Cheng⁴, Lin Chen^1,3, Haohong Pan^1,3, Daming Zhang², Tianli Hu^1,3,*, Thobela Louis Tyasi⁵

1 College of Information Technology, Jilin Agricultural University, Changchun, 130118, China
2 State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China
3 Jilin Province Intelligent Environmental Engineering Research Center, Changchun, 130118, China
4 College of Resources and Environment, Jilin Agricultural University, Changchun, 130000, China
5 Department of Agricultural Economics and Animal Production, University of Limpopo, 0727, Polokwane, South Africa

* Corresponding Author: Tianli Hu. Email:

Computers, Materials & Continua 2022, 73(3), 4971-4980. https://doi.org/10.32604/cmc.2022.029433

Received 03 March 2022; Accepted 06 April 2022; Issue published 28 July 2022

Abstract

Flexible strain sensor has attracted much attention because of its potential application in human motion detection. In this work, the prepared strain sensor was obtained by encapsulating electrospun carbonized sponge (CS) with room temperature vulcanized silicone rubber (RTVS). In this paper, the formation mechanism of conductive sponge was studied. Based on the combination of carbonized sponge and RTVS, the strain sensing mechanism and piezoresistive properties are discussed. After research and testing, the CS/RTVS flexible strain sensor has excellent fast response speed and stability, and the maximum strain coefficient of the sensor is 136.27. In this study, the self-developed CS/RTVS sensor was used to monitor the movements of the wrist joint, arm elbow joint and fingers in real time. Research experiments show that CS/RTVS flexible strain sensor has good application prospects in the field of human motion monitoring.

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Keywords

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