“Two years ago, we created the most power-dense actuator and it could barely fly.
The 20-layer actuator was still working smoothly after being driven for more than 2 million cycles, far outpacing the lifespan of other actuators. Their hovering robot held its position more stably than any of the others. They also demonstrated a 20-second hovering flight, which Chen says is the longest ever recorded by a sub-gram robot. ’41 assistant professor in the Department of Electrical Engineering and Computer Science, the head of the Soft and Micro Robotics Laboratory in the Research Laboratory of Electronics (RLE), and the senior author of the paper. The take-home message is that soft robots can exceed the performance of rigid robots,” says Kevin Chen, who is the D. We demonstrate that this robot, weighing less than a gram, flies for the longest time with the smallest error during a hovering flight. People tend to think that soft robots are not as capable as rigid robots. “This opens up a lot of opportunity in the future for us to transition to putting power electronics on the microrobot. This new fabrication technique produces artificial muscles with fewer defects, which dramatically extends the lifespan of the components and increases the robot’s performance and payload. These soft actuators are like artificial muscles that rapidly flap the robot’s wings. Now, these researchers have pioneered a fabrication technique that enables them to build soft actuators that operate with 75 percent lower voltage than current versions while carrying 80 percent more payload.
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