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Robot muscle – YouTube

artificial_body

artist rendering of artificial muscle on robot frame is by dcldesign [1].

Electroactive Polymers or EAPs are polymers whose shape is modified when a voltage is applied to them. They can be used as actuators or sensors. As actuators, they are characterized by being able to undergo a large amount of deformation while sustaining large forces. Due to the similarities with biological tissues in terms of achievable stress and force, they are often called artificial muscles, and have the potential for application in the field of robotics, where large linear movement is often needed.

EAP can have several configurations, but are generally divided in two principal classes:

Information taken from Wikipedia.

Short YouTube video of a robot torso flexing and using it’s artificial muscles to do dumbbell curls and write “Hello”.