摘要 |
An electroadhesive device includes an outer surface adapted to interface with a surface of a foreign substrate, a plurality of electrodes (18), and a semi-conductive insulation material (20) disposed adjacent to at least one of the electrodes (18). Each electrode (18) has a respective conductive volume and is configured to apply a voltage at a respective location of the outer surface, and the difference in voltage between applied voltages includes an electrostatic adhesion voltage that produces an electro-static force between the device and the substrate (16) that is suitable to maintain a current position of the device relative to the substrate (16). The insulation material (20) can be polyurethane or any other suitable material having a resistance of about 109 to 1012 ohms*m. The insulation material effectively operates to expand the conductive volume of the electrodes (18) when they are actuated. |