Issue

Vol. 13 (2021)

Magnetic Array Assisted Triboelectric Nanogenerator Sensor for Real-Time Gesture Interaction

https://doi.org/10.1007/s40820-020-00575-2
Ken Qin
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Chen Chen
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Xianjie Pu
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Qian Tang
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Wencong He
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Yike Liu
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Qixuan Zeng
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Guanlin Liu
Center On Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, Guangxi 530004, People’s Republic of China
Hengyu Guo
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China
Chenguo Hu
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, People’s Republic of China

Corresponding Author: Chenguo Hu

hucg@cqu.edu.cn

Nano-Micro Letters, Vol. 13 (2021), Article Number: 51

Abstract

In human-machine interaction, robotic hands are useful in many scenarios. To operate robotic hands via gestures instead of handles will greatly improve the convenience and intuition of human-machine interaction. Here, we present a magnetic array assisted sliding triboelectric sensor for achieving a real-time gesture interaction between a human hand and robotic hand. With a finger’s traction movement of flexion or extension, the sensor can induce positive/negative pulse signals. Through counting the pulses in unit time, the degree, speed, and direction of finger motion can be judged in real-time. The magnetic array plays an important role in generating the quantifiable pulses. The designed two parts of magnetic array can transform sliding motion into contact-separation and constrain the sliding pathway, respectively, thus improve the durability, low speed signal amplitude, and stability of the system. This direct quantization approach and optimization of wearable gesture sensor provide a new strategy for achieving a natural, intuitive, and real-time human-robotic interaction.


Highlights:


1 By counting the positive/negative pulses in unit time to sense the degree, speed, and direction of finger motion in real-time.
2 The magnetic array assisted sliding structure translates sliding motion into contact-separation thus improves the durability and low-speed signal amplitude.
3 The magnetic track constrains the sliding direction that greatly improves the stability.

Keywords

Sliding triboelectric sensor Magnetic array Gesture Real-time Human-machine interaction
Qin, Ken, Chen Chen, Xianjie Pu, Qian Tang, Wencong He, Yike Liu, Qixuan Zeng, Guanlin Liu, Hengyu Guo, and Chenguo Hu. 2021. “Magnetic Array Assisted Triboelectric Nanogenerator Sensor for Real-Time Gesture Interaction”. Nano-Micro Letters 13 (January):51. https://doi.org/10.1007/s40820-020-00575-2.
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