Understanding the mechanics behind electroadhesion suction cups involves two key principles:
Traditional suction cups create a pressure differential by evacuating air from the cup, forming a vacuum. Atmospheric pressure then pushes the cup against the surface, enabling adhesion. This method works best on smooth, non-porous surfaces.
Electroadhesion adds an electrostatic force generated by applying a high voltage to stretchable electrodes embedded within a soft pad at the suction cup's base. This force creates an additional attraction between the suction cup and the object, sealing microscopic gaps and improving grip on both smooth and rough surfaces.
