Saturday, March 20, 2010

Fuel Cell Powered Robotic Fish

The folks at the Faculty of Engineering at Osaka City University have designed a robotic fish that can swim around the tank powered by just a solid-polymer fuel cell, called the “Power Tube”. The 10cm long robotic fish can swim, dive and rise, thanks to a joint at the front end of the fish.

Originally they wanted to use a motor to get the fish swimming, but power consumption was about 1W, so they switched to a magnet system that reduced that number to just 10mW. Now they want to develop a robotic fish that can swim for three days on a single charge.

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