Federal Polytechnic School of Lausanne has developed a micro-robot capable of performing bonds up to 27 times its size (1.4 meters for a mechanism of 5cm).
Usually, small robots face insurmountable problems if the roughness of land increased significantly. This effect is called Grain Size Hypothesis.
Methods rolling, creeping and walking even have their own limitations. For example, a vertical wall whose height exceeds that of the robot will remain difficult to cross, unless you can not anchor, which raises other problems.
From this observation and to resolve these difficulties the grasshopper robot was developed.
The principle is similar to insects: it stores energy in a spring using a small electric motor driving a cam. This came the transformation of rotary motion into a movement of translation.
The legs of the grasshopper robot can be adjusted according to the power pulse or the angle of takeoff. A small onboard battery allows up to 320 jumps at intervals of 3 seconds.
Equipped with sensors, these micro-robots will soon not have to prove their effectiveness.
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