Engineers from Poland are creating a humanoid robot consisting of parts that completely replicate
Now the developers are doing their hands: they recently created a working prototype, it can repeat the functions and movements of the hand with the forearm:
The assembled arm moves using artificial muscles: they pull cables that replace tendons in the human body.
The developers made the muscles based on the constructionpneumatic muscles or they are also called the McKiben pneumatic actuator. They consist of an expandable sealed tube with a braided sheath around it.
When gas or liquid is supplied, the tube inflates andincreases in width, but due to the fact that the fibers of the woven shell practically do not stretch, the structure decreases in length, just as real muscles contract.
For the work of the robotic arm, it receives water frompump. Each muscle has an electro-hydraulic valve that allows you to regulate the flow of water and the rate of contraction. The peak power consumption of the hand is 200 watts, and its weight is one kilogram.
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