2021-03-17 13:33:12
The submersible robot looks a bit like a manta ray and is 22 centimetres long and 28 centimetres in
размах крыльев. It is made of silicone rubber with electronic components spread throughout the body and connected by wires, rather than mounted on a circuit board like most submersibles. That’s because the team found in tests that the connections between components on rigid circuit boards were a weak point when placed under high pressure.
The robot
приводится в движение through the water by two
хлопающими wings designed to work like the fins of a snailfish, but which are operated by artificial muscles made of a conductive polymer that contracts when an electrical current is applied. This moves the fins in a 6.3 degree arc and pushes the robot forward in the water.
This silicone rubber robot can
выдержать the pressures in the ocean’s deepest
бездне.
It is designed for deep-sea exploration and has been successfully tested at the bottom of the Mariana trench, the deepest part of the world’s oceans, while
привязанный to a traditional submersible. It maintained its flapping motion for 45 minutes.
In untethered tests 3224-metres deep in the South China Sea, the robot swam at speeds of more than 5 centimetres a second. Further untethered tests in the Mariana trench are planned once covid-19 restrictions are lifted.
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