Swedish scientists want to explore Mars with caterpillar-like robots
Researchers at the University of Gothenburg developed a 3 cm soft robot made of polymer artificial muscles that moves like a caterpillar, reinforced with carbon nanotubes to improve durability and radiation resistance. The use of carbon nanotubes in flexible robotic actuators demonstrates a functional application for the material in extreme-environment electronics protection beyond traditional structural composites.
Researchers at the University of Gothenburg in Sweden have introduced a soft robot designed to move like a caterpillar. This innovative device, measuring just three centimeters in length, could potentially inspect sewer pipes and assist in Mars exploration.
Constructed entirely from soft materials, the robot lacks rigid components. It operates using thin polymer 'artificial muscles' that expand under low electrical voltage and contract when the voltage is removed. This mechanism allows the robot to mimic the muscle contractions of a caterpillar.
During trials, the robot successfully traversed uneven surfaces and maintained full functionality after prolonged use. Its compact size enables the integration of a camera, making it suitable for inspecting pipelines inaccessible to traditional equipment.
Looking to the future, developers envision these soft robots as tools for planetary exploration. They can navigate narrow crevices, caves, and other challenging terrains where conventional Mars rovers may become immobilized.
To enhance durability, engineers have reinforced the robot with carbon nanotubes. This reinforcement not only helps the robot withstand minor damage but also offers potential protection for its electronics against cosmic radiation in space missions.
Source: Carbon Nanotubes Feed