TY - GEN
T1 - Developing Self-powered High Performance Sensors
T2 - 2022 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, DTIP 2022
AU - Li, Cheng
AU - Lan, Qinhong
AU - Wang, Dong F.
AU - Itoh, Toshihiro
AU - Maeda, Ryutaro
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In our previous related works of DTIP, a tri-Axial piezoelectric accelerometer with an error compensation method was proposed in DTIP2018, and a PE/ME coupling in a vibration energy convertor was preliminarily studied in DTIP2020. Vibration sources in life are mostly low frequency, while its harvesting faces difficulties. In this paper, a ball-impacted piezoelectric/electromagnetic (PE/ME) composite energy harvester (BCEH) with a frequency up-conversion (FUC) mechanism is proposed. Upon excitation, a piezoelectric cantilever, magnetically coupled to a coil, vibrates back and forth with large amplitudes through ball-impacts. Compared to without ball-impacts, the experimental results show that the proposed ball-magnet-cantilever structure increases the maximum PE output by 263% and increases the maximum ME output by 42.9%, demonstrating the contribution of the frequency up-conversion mechanism. In addition, the coil is found to help broaden the response bandwidth to a certain extent, but unfavorable for the peak voltage, which needs further studied.
AB - In our previous related works of DTIP, a tri-Axial piezoelectric accelerometer with an error compensation method was proposed in DTIP2018, and a PE/ME coupling in a vibration energy convertor was preliminarily studied in DTIP2020. Vibration sources in life are mostly low frequency, while its harvesting faces difficulties. In this paper, a ball-impacted piezoelectric/electromagnetic (PE/ME) composite energy harvester (BCEH) with a frequency up-conversion (FUC) mechanism is proposed. Upon excitation, a piezoelectric cantilever, magnetically coupled to a coil, vibrates back and forth with large amplitudes through ball-impacts. Compared to without ball-impacts, the experimental results show that the proposed ball-magnet-cantilever structure increases the maximum PE output by 263% and increases the maximum ME output by 42.9%, demonstrating the contribution of the frequency up-conversion mechanism. In addition, the coil is found to help broaden the response bandwidth to a certain extent, but unfavorable for the peak voltage, which needs further studied.
KW - Ball-impact
KW - Energy harvester
KW - Frequency up-conversion mechanism
KW - Low frequency vibrations
KW - Piezoelectric/magnetoelectric (PE/ME) composite mechanism
UR - https://www.scopus.com/pages/publications/85141878538
U2 - 10.1109/DTIP56576.2022.9911741
DO - 10.1109/DTIP56576.2022.9911741
M3 - 会议稿件
AN - SCOPUS:85141878538
T3 - 2022 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, DTIP 2022
BT - 2022 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, DTIP 2022
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 11 July 2022 through 13 July 2022
ER -