• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2022, Vol. 58 ›› Issue (20): 158-165.doi: 10.3901/JME.2022.20.158

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Research on Self-powered Low Frequency Vibration Sensor Based on Triboelectric Nanogenerator

WEI Bin1, PANG Hongchen2, YANG Fang2, ZHAO Zhiqiang1, ZHONG Yinghao2, HUANG Xili1, LIN Fang1, PAN Xinxiang1   

  1. 1. School of Electronics&Information Engineering, Guangdong Ocean University, Zhanjiang 524088;
    2. School of Mechanical&Power Engineering, Guangdong Ocean University, Zhanjiang 524088
  • Received:2021-12-10 Revised:2022-06-22 Online:2022-10-20 Published:2022-12-27

Abstract: A self-powered low-frequency vibration sensor (LV-TENG) based on triboelectric nanogenerator (TENG) was designed. TENG power generation theory and electrical simulation are combined to clarify the basic principle of the sensor to generate electrical signals, and it is proved that LV-TENG can monitor two-dimensional vibration without external power supply. COMSOL simulation analysis shows that based on the Contact-Mode Freestanding Triboelectric Nanogenerator, there is a linear relationship between the electrical signals output from both sides of the electrode and the amplitude of the ball, when the charged polytetrafluoroethylene (PTFE) ball vibrates. Through the vibration characteristic experiment of the sensor, the relationship between the LV-TENG output electrical signal and the external vibration parameters under different angles is quantitatively analyzed. The LV-TENG can accurately judge the vibration state according to the characteristic quantity of the output electric signal.

Key words: triboelectric nanogenerator, self-power, vibration sensor

CLC Number: