TY - JOUR
T1 - Macro fiber composite-based low frequency vibration energy harvester
AU - Ju, Suna
AU - Chae, Song Hee
AU - Choi, Yunhee
AU - Ji, Chang Hyeon
N1 - Funding Information:
This work was supported by the Ewha Global Top 5 Grant 2011 of Ewha Womans University and by the Converging Research Center Program funded by the Ministry of Science, ICT and Future Planning, Korea ( 2013K000355 ) and by the Pioneer Research Center Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT & Future Planning ( 2010-0019313 ).
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - Abstract In this paper, we present a vibration energy harvester using a spherical permanent magnet as springless proof mass and a magnetoelectric laminate structure composed of MSMA (magnetic shape memory alloy) and MFC (macro fiber composite) in d31 or d33 operational modes. Combination of transduction mechanisms, including magnetoelectric effect and impact-induced vibration of the magnetoelectric laminate composite, generates power from low frequency excitation such as human-body-induced motion. Two different types of magnetoelectric laminate composite based power generators have been fabricated, tested and compared. Moreover, the contributions of individual transduction mechanisms have been analyzed experimentally. Maximum peak-to-peak open circuit voltage of 16.4 V has been obtained in response to a 3 g vibration at 15 Hz for device with d33 mode MFC. Device with d31 mode MFC generated maximum output power of 11.2 μW in vibration exciter test and 82.5 μW in manual vibration test across an 800 Ω load. Based on the experimental observations, an impact-based harvester with d31 mode MFC has been proposed, which generated improved output power of 245.6 μW.
AB - Abstract In this paper, we present a vibration energy harvester using a spherical permanent magnet as springless proof mass and a magnetoelectric laminate structure composed of MSMA (magnetic shape memory alloy) and MFC (macro fiber composite) in d31 or d33 operational modes. Combination of transduction mechanisms, including magnetoelectric effect and impact-induced vibration of the magnetoelectric laminate composite, generates power from low frequency excitation such as human-body-induced motion. Two different types of magnetoelectric laminate composite based power generators have been fabricated, tested and compared. Moreover, the contributions of individual transduction mechanisms have been analyzed experimentally. Maximum peak-to-peak open circuit voltage of 16.4 V has been obtained in response to a 3 g vibration at 15 Hz for device with d33 mode MFC. Device with d31 mode MFC generated maximum output power of 11.2 μW in vibration exciter test and 82.5 μW in manual vibration test across an 800 Ω load. Based on the experimental observations, an impact-based harvester with d31 mode MFC has been proposed, which generated improved output power of 245.6 μW.
KW - Energy harvesting
KW - Macro fiber composite
KW - Magnetic shape memory alloy
KW - Vibration
UR - http://www.scopus.com/inward/record.url?scp=84925340293&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2015.02.025
DO - 10.1016/j.sna.2015.02.025
M3 - Article
AN - SCOPUS:84925340293
SN - 0924-4247
VL - 226
SP - 126
EP - 136
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
M1 - 9081
ER -