Chinese scientists build robot earthworm to explore engine pipes

Chinese scientists have developed a tiny wormlike robot that can wiggle into tiny pipes to inspect them with an endoscopic camera.

“Our robot was designed with soft, elastic materials, and thus, with enough force applied, it could be bent to different shapes,” the team wrote in an article published in the peer-reviewed journalModules of the robot, measuring less than 5cm in length and 1cm in diameter, can be snapped together with magnets to assemble a longer robot, according to the team from the mechanical engineering department.

The team tested the robot in a straight pipe with a diameter of 9.8mm and found it could move at a pace of about one body length per second in both a horizontal and vertical direction.For now, the robot is powered by tethered cables from outside the pipe, “which might cause the problem of large drag force that prevents the robot from going deeper into pipes”, according to the study.

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