naa a22 4500 510822711 CHVBK 20180411083541.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12541-013-0171-2 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0171-2 A study of piezoelectric harvesters for low-level vibrations in wireless sensor networks [Elektronische Daten] [Yong-Jin Yoon, Woo-Tae Park, King Li, Yu Ng, Yongnam Song] In this paper, we aimed to study the feasibility of using a piezoelectric harvester as a potential energy source to power microsystems, such as MicroElectroMechanical Systems (MEMSs) in wireless sensor networks (WSNs). An off-the-shelf piezoelectric bimorph was first tested to determine the power output under various resonant frequencies in the range of 42 to 103 Hz. The results showed that the piezoelectric bimorph generated greater power output at lower frequencies and higher accelerations, achieving an output of 3.072 mW from a vibrational source of 53 Hz and 1 g acceleration. The same system was also examined in response to low-level vibration source found in common environments, such as areas of residence, transportation and machinery to investigate the viability of its use in an environment with inconsistent vibrational frequency. Finally, a discussion is provided regarding the use of piezoelectric harvesters for WSNs and potential approaches to increase power output. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Energy harvesting nationallicence PZT piezoelectric bimorph nationallicence Broadband harvester nationallicence MEMS nationallicence WSN nationallicence MEMS : MicroElectroMechanical Systems nationallicence VLSI : Very Large-Scale Integration nationallicence WSN : Wireless Sensor Networks nationallicence PZT : Lead Zirconate Titanate nationallicence Yoon Yong-Jin School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639-798, Singapore, Singapore aut Park Woo-Tae Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology, 172, Gongreung-2 dong, Nowon-gu, 139-743, Seoul, South Korea aut Li King School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639-798, Singapore, Singapore aut Ng Yu School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639-798, Singapore, Singapore aut Song Yongnam School of Mechanical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, 136-701, Seoul, South Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/7(2013-07-01), 1257-1262 2234-7593 14:7<1257 2013 14 12541 https://doi.org/10.1007/s12541-013-0171-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0171-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yoon Yong-Jin School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639-798, Singapore, Singapore aut NATIONALLICENCE 700 1- Park Woo-Tae Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology, 172, Gongreung-2 dong, Nowon-gu, 139-743, Seoul, South Korea aut NATIONALLICENCE 700 1- Li King School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639-798, Singapore, Singapore aut NATIONALLICENCE 700 1- Ng Yu School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639-798, Singapore, Singapore aut NATIONALLICENCE 700 1- Song Yongnam School of Mechanical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, 136-701, Seoul, South Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/7(2013-07-01), 1257-1262 2234-7593 14:7<1257 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer