Browsing the "networks of sensors" Tag

Picking Up Good Vibrations – Tiny Energy Harvester is Most Powerful Yet

May 25th, 2011 | by Michael Ricciardi

Recently, electrical engineers at the University of Michigan, have perfected a device that can harness ambient, mechanical vibrations and convert these into electricity at 5 to 10 times the efficiency and power output than previous devices of this type. At 27 cubic millimeters, a single such system fits -- with room to spare -- on a penny. According to the engineers, the wireless/battery-less devices can be installed and left alone for 10 to 20 years, essentially a "limitless shelf time"