TY - JOUR
T1 - Electrode shape dependence of the barbell-shaped magneto-mechano-electric energy harvester for low-frequency applications
AU - Wu, Jingen
AU - Hu, Zhongqiang
AU - Gao, Xiangyu
AU - Cheng, Miaomiao
AU - Zhao, Xinger
AU - Su, Wei
AU - Li, Xiaotian
AU - Wang, Zhiguang
AU - Zhou, Ziyao
AU - Dong, Shuxiang
AU - Liu, Ming
N1 - Funding Information:
Jingen Wu appreciates the support by the Fundamental Research Funds for the Central Universities and Chinese Postdoctoral Science Foundation (Grant No. 2019M653605). This research is supported by Natural Science Foundation of China (Grant Nos. 51802248, 51705373, and 51602244), the National Key Laboratory Foundation (Grant Nos. 2018SSFNKLSMT-04 and 614241101010117), the Key R&D Program of Shaanxi Province (Grant No. 2018GY-109), and the National 111 Project of China (B14040).
Funding Information:
Jingen Wu appreciates the support by the Fundamental Research Funds for the Central Universities and Chinese Postdoctoral Science Foundation (Grant No. 2019M653605 ). This research is supported by Natural Science Foundation of China (Grant Nos. 51802248 , 51705373 , and 51602244 ), the National Key Laboratory Foundation (Grant Nos. 2018SSFNKLSMT-04 and 614241101010117 ), the Key R&D Program of Shaanxi Province (Grant No. 2018GY-109 ), and the National 111 Project of China ( B14040 ).
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/10/1
Y1 - 2019/10/1
N2 - A magneto-mechano-electric (MME) device for energy harvesting from ambient low-frequency magnetic field is investigated in this study. Consisting of piezoelectric ceramic rings, NdFeB permanent magnets and union piece, the proposed MME energy harvester is designed with the barbell-shaped structure operating in d33 mode. NdFeB permanent magnets are attached at the free end of barbell-shaped structure, which can produce compressive stress on the piezoelectric ceramic rings via magnetic torque effect. The properties of the MME energy harvester are optimized by using the finite element analysis. Two electrode shapes, including full electrode and divided electrode, are investigated in the aspect of their influences on the device performance. The finite element analysis is consistent with the experimental results, revealing that the electrode shape of piezoelectric ceramic rings is crucial for the performance of the proposed MME device. The MME device presents a low resonant frequency (<50 Hz), a magnetoelectric coefficient higher than 1 V/cm Oe, a high output voltage (>10 V @ 10 Oe), a maximum output power of ˜10.5 μW and a maximum power density of 3.5 μW/Oe cm3, demonstrating the potential applications for harvesting ambient low-frequency magnetic field energy.
AB - A magneto-mechano-electric (MME) device for energy harvesting from ambient low-frequency magnetic field is investigated in this study. Consisting of piezoelectric ceramic rings, NdFeB permanent magnets and union piece, the proposed MME energy harvester is designed with the barbell-shaped structure operating in d33 mode. NdFeB permanent magnets are attached at the free end of barbell-shaped structure, which can produce compressive stress on the piezoelectric ceramic rings via magnetic torque effect. The properties of the MME energy harvester are optimized by using the finite element analysis. Two electrode shapes, including full electrode and divided electrode, are investigated in the aspect of their influences on the device performance. The finite element analysis is consistent with the experimental results, revealing that the electrode shape of piezoelectric ceramic rings is crucial for the performance of the proposed MME device. The MME device presents a low resonant frequency (<50 Hz), a magnetoelectric coefficient higher than 1 V/cm Oe, a high output voltage (>10 V @ 10 Oe), a maximum output power of ˜10.5 μW and a maximum power density of 3.5 μW/Oe cm3, demonstrating the potential applications for harvesting ambient low-frequency magnetic field energy.
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U2 - 10.1016/j.sna.2019.111535
DO - 10.1016/j.sna.2019.111535
M3 - Article
AN - SCOPUS:85070274158
SN - 0924-4247
VL - 297
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
M1 - 111535
ER -