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Author Topic:   Liquid Robotics
jimh posted 03-21-2012 04:14 PM ET (US)   Profile for jimh   Send Email to jimh  
There is interesting news from LIQUID ROBOTICS regarding their Wave Glider marine robot breaking the world record for distance by an unmanned wave-powered vehicle.

A fleet of four Wave Glider robots was launched in November 2011 from San Francisco Bay, and programmed to sail (via wave action) to Hawaii. The Wave Glider robots traveled 3,200 miles and arrived on March 12, 2012.

The four robots will be checked, and then re-launched for destinations in Japan and Australia.

The Wave Glider design employs two assemblies: a float, which rides up and down on the waves at the surface, and a submerged glider, which converts the vertical motion into horizontal movement via wings. The two are linked by a cable. See

for a sketch showing the mechanism.

The surface float contains batteries and solar cells for power. Various electronic sensors can be carried for measurement of ocean conditions.

jimh posted 04-01-2012 01:20 PM ET (US)     Profile for jimh  Send Email to jimh     
The wave-action energy source is also the basis for this boat bilge pump: do?videoId=1078

This is an interesting concept for a replacement for an electrical pump.

Chuck Tribolet posted 04-03-2012 11:44 AM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
One of my dive buddies was a contract tech writer at Liquid
Robotics for a while. It's pretty cool technology.


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