TY - GEN
T1 - An Ultra-Low Frequency Magnet-Tethered Vibration Energy Harvester for Self-Powered Sensing
AU - Masabi, Sayed Nahiyan
AU - Fu, Hailing
AU - Theodossiades, Stephanos
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/20
Y1 - 2021/6/20
N2 - Wireless sensors face challenges regarding power supply and maintenance when batteries are used. To provide an effective solution, this paper presents a bistable energy harvester capable of exploiting ultra-low frequency vibration to energize low-powered devices. The energy harvester uses rotary-translational motion of a spherical rolling magnet contained inside a frame, with two tethering magnets below the rolling magnet's path to enable two stable positions. To examine the performance of the design, a prototype was fabricated and tested under varying excitation conditions and external loads. An output of 7.1 mW at 750 Ω was effectively determined. A power management circuit is integrated with the energy harvester; the harvester can charge a 470 F capacitor to 3.4 V within 82 s at 0.7 g and 2 Hz.
AB - Wireless sensors face challenges regarding power supply and maintenance when batteries are used. To provide an effective solution, this paper presents a bistable energy harvester capable of exploiting ultra-low frequency vibration to energize low-powered devices. The energy harvester uses rotary-translational motion of a spherical rolling magnet contained inside a frame, with two tethering magnets below the rolling magnet's path to enable two stable positions. To examine the performance of the design, a prototype was fabricated and tested under varying excitation conditions and external loads. An output of 7.1 mW at 750 Ω was effectively determined. A power management circuit is integrated with the energy harvester; the harvester can charge a 470 F capacitor to 3.4 V within 82 s at 0.7 g and 2 Hz.
KW - Bi-stability
KW - Self-powered sensing
KW - Ultra-low frequency excitation
KW - Vibration energy harvesting
UR - http://www.scopus.com/inward/record.url?scp=85114962336&partnerID=8YFLogxK
U2 - 10.1109/Transducers50396.2021.9495714
DO - 10.1109/Transducers50396.2021.9495714
M3 - Conference contribution
AN - SCOPUS:85114962336
T3 - 21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
SP - 956
EP - 959
BT - 21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2021
Y2 - 20 June 2021 through 25 June 2021
ER -