DataVXACS Applied Materials & InterfacesPaper
journal article·2023-10-04

Flexible Capacitive Pressure Sensor with High Sensitivity and Wide Range Based on a Cheetah Leg Structure via 3D Printing

Weiqiang Hong, Xiaohui Guo, Tianxu Zhang, Anqi Zhang, Zihao Yan, Xinyi Zhang, Xianghui Li, Yuxin Guan, Dongzhi Liao, Haochen Lu, Hanyu Liu, Jiangtao Hu, Yongzheng Niu, Qi Hong, Yunong Zhao

ACS Applied Materials & Interfaces· Volume 15· Issue 39
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Source abstract

Abstract

Flexible pressure sensors can be used in human–computer interaction and wearable electronic devices, but one main challenge is to fabricate capacitive sensors with a wide pressure range and high sensitivity. Here, we designed a capacitive pressure sensor based on a bionic cheetah leg microstructure, validated the benefits of the bionic microstructure design, and optimized the structural feature parameters using 3D printing technology. The pressure sensor inspired by the cheetah leg shape has a high sensitivity (0.75 kPa –1 ), a wide linear sensing range (0–280 kPa), a fast response time of roughly 80 ms, and outstanding durability (24,000 cycles). Furthermore, the sensor can recognize a finger-operated mouse, monitor human motion, and transmit Morse code information. This work demonstrates that bionic capacitive pressure sensors hold considerable promise for use in wearable devices.
Source: openalex_inverted_index · Quality: baseline

Research context

Materials processing

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Tactile and Sensory Interactions · Muscle activation and electromyography studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education, School of Integrated Circuits, Anhui University, Hefei 230601, P. R. China

State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China

Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, P. R. China

School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, P. R. China

Funding

China Postdoctoral Science Foundation · National Natural Science Foundation of China · Natural Science Foundation of Anhui Province · Anhui Provincial Postdoctoral Science Foundation · Central Government Will Guide Local Special Funds for Scientific and Technological Development

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