Closed loop control of force operation in a novel self-sensing dielectric elastomer actuator

摘要

Highlights ? A self-sensing mechanism of the dielectric elastomer actuator is proposed. ? Closed loop control of force operation is achieved. ? The sensing capacity is enhanced by electrode optimization and motion-constraining. ? It does not exhibit long-term drift in the capacitance-deformation correlation. ? It senses the off-plane expansion distinctly compared with the in-plane expansion. Abstract