Simultaneous Detection of Static and Dynamic Signals by a Flexible Sensor Based on 3D Graphene

Rongqing Xu; Di Wang; Hongchao Zhang; Na Xie; Shan Lu; Ke Qu

doi:10.3390/s17051069

Simultaneous Detection of Static and Dynamic Signals by a Flexible Sensor Based on 3D Graphene

Sensors (Basel). 2017 May 8;17(5):1069. doi: 10.3390/s17051069.

Authors

Rongqing Xu^{1

2}, Di Wang³, Hongchao Zhang⁴, Na Xie⁵, Shan Lu⁶, Ke Qu⁷

Affiliations

¹ College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China. xurq@njupt.edu.cn.
² National Laboratory of Solid-State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China. xurq@njupt.edu.cn.
³ College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China. 1215022719@njupt.edu.cn.
⁴ Department of Information Physics and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. hongchao@njust.edu.cn.
⁵ College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China. xienns@njupt.edu.cn.
⁶ Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai Aerospace Control Technology Institute, Shanghai 201109, China. 1215022718@njupt.edu.cn.
⁷ College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China. quke@njupt.edu.cn.

Abstract

A flexible acoustic pressure sensor was developed based on the change in electrical resistance of three-dimensional (3D) graphene change under the acoustic waves action. The sensor was constructed by 3D graphene foam (GF) wrapped in flexible polydimethylsiloxane (PDMS). Tuning forks and human physiological tests indicated that the acoustic pressure sensor can sensitively detect the deformation and the acoustic pressure in real time. The results are of significance to the development of graphene-based applications in the field of health monitoring, in vitro diagnostics, advanced therapies, and transient pressure detection.

Keywords: acoustic pressure sensor; flexible; three-dimensional graphene foam; wearable.