Improving power output for vibration-based energy scavengers

@article{citeulike:423788, abstract = {Pervasive networks of wireless sensor and communication nodes have the potential to significantly impact society and create large market opportunities. For such networks to achieve their full potential, however, we must develop practical solutions for self-powering these autonomous electronic devices. We've modeled, designed, and built small cantilever-based devices using piezoelectric materials that can scavenge power from low-level ambient vibration sources. Given appropriate power conditioning and capacitive storage, the resulting power source is sufficient to support networks of ultra-low-power, peer-to-peer wireless nodes. These devices have a fixed geometry and - to maximize power output - we've individually designed them to operate as close as possible to the frequency of the driving surface on which they're mounted. In this paper, we describe these devices and present some new designs that can be tuned to the frequency of the host surface, thereby expanding the method's flexibility. We also discuss piezoelectric designs that use new geometries, some of which are microscale (approximately hundreds of microns).}, author = {Roundy, S. and Leland, E. S. and Baker, J. and Carleton, E. and Reilly, E. and Lai, E. and Otis, B. and Rabaey, J. M. and Wright, P. K. and Sundararajan, V. }, citeulike-article-id = {423788}, journal = {Pervasive Computing, IEEE}, keywords = {energy, harvesting, power, vibration}, number = {1}, pages = {28--36}, posted-at = {2005-12-06 23:38:03}, priority = {4}, title = {Improving power output for vibration-based energy scavengers}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=1401840}, volume = {4}, year = {2005} }

TY - JOUR ID - citeulike:423788 L3 - citeulike-article-id:423788 N2 - Pervasive networks of wireless sensor and communication nodes have the potential to significantly impact society and create large market opportunities. For such networks to achieve their full potential, however, we must develop practical solutions for self-powering these autonomous electronic devices. We've modeled, designed, and built small cantilever-based devices using piezoelectric materials that can scavenge power from low-level ambient vibration sources. Given appropriate power conditioning and capacitive storage, the resulting power source is sufficient to support networks of ultra-low-power, peer-to-peer wireless nodes. These devices have a fixed geometry and - to maximize power output - we've individually designed them to operate as close as possible to the frequency of the driving surface on which they're mounted. In this paper, we describe these devices and present some new designs that can be tuned to the frequency of the host surface, thereby expanding the method's flexibility. We also discuss piezoelectric designs that use new geometries, some of which are microscale (approximately hundreds of microns). IS - 1 JF - Pervasive Computing, IEEE EP - 36 TI - Improving power output for vibration-based energy scavengers VL - 4 SP - 28 KW - energy KW - harvesting KW - power KW - vibration AU - Roundy, S AU - Leland, ES AU - Baker, J AU - Carleton, E AU - Reilly, E AU - Lai, E AU - Otis, B AU - Rabaey, JM AU - Wright, PK AU - Sundararajan, V PY - 2005/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1401840 ER -