Simultaneous energy harvesting and acceleration measuring based on time-space sharing operation of a single piezoelectric transducer

DOI Web Site 参考文献30件
  • Fang Bin
    Faculty of Electrical Engineering and Computer Science, Ningbo University
  • Xia Huakang
    Faculty of Electrical Engineering and Computer Science, Ningbo University
  • Chen Guozhu
    Faculty of Electrical Engineering and Computer Science, Ningbo University
  • Xia Yinshui
    Faculty of Electrical Engineering and Computer Science, Ningbo University
  • Shi Ge
    College of Mechanical and Electrical Engineering, China Jiliang University
  • Ye Yidie
    School of Information Science and Engineering, NingboTech University
  • Wang Xiudeng
    School of Microelectronics and the Hangzhou Institute of Technology, Xidian University
  • Qian Libo
    School of Microelectronics and the Hangzhou Institute of Technology, Xidian University

抄録

<p>Piezoelectric transducers (PZTs) can be used not only for vibration energy harvesting (VEH), but also for vibration signal sensing. However, it is difficult to realize both functions on a single PZT. In this paper, we propose a simultaneous energy harvesting and acceleration measuring (SEHAM) solution based on a single PZT. It is implemented by time-space sharing strategy rather than time-division multiplexing strategy. In addition, a signal extraction model based on first harmonic approximation (FHA) method is established to recover acceleration signals from SEHAM operations. Finally, a rapid prototype is built to evaluate the performance of SEHAM under different vibration frequencies. Experimental results show that the EH and AM operations can be carried out simultaneously. At the resonance point, the average relative error of AM is 7.14%, and the EH power is 189.10µW with a PZT open-circuit voltage of 5V. This solution is significant to the development of self-powered sensors and can be used as redundant backup of traditional sensors.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 21 (6), 20240084-20240084, 2024-03-25

    一般社団法人 電子情報通信学会

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