Researchers at ETH Zürich have developed a unique robot leg powered by a hybrid electro-hydraulic system, enabling faster movement and improved performance on uneven terrain without extra sensors.
The actuators for the robot legs, described as 'oil-filled plastic bags,' expand and contract based on applied voltage, showcasing a simple yet effective approach compared to traditional electric actuators.
Grad student Thomas Buchner explained the basic working principle: applying voltage to electrodes creates a static electricity effect, akin to how hair sticks to a balloon after rubbing.
Christoph Keplinger acknowledges the limitations of the current system, noting the leg's inability to move freely, but envisions future applications in robotic rescue missions when combined with battery power.
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