A comparison of the electromechanical characteristics of dielectric elastomer minimum energy structures (DEMES) and planar dielectric elastomer actuators (p-DEAs)
Sprache des Vortragstitels:
Electroactive Polymer Actuators and Devices (EAPAD) XV (Part of the conference "Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring")
Sprache des Tagungstitel:
Dielectric elastomer actuators are considered as promising candidates for robotic elements. To this end planar dielectric elastomer actuators and dielectric elastomer minimum energy structures are applicable. The knowledge of their electrical and mechanical characteristics is very important for engineering tasks. Therefore we study these actuators by impedance spectroscopy and dynamic capacitive extensometry (DCE). DCE is an electrical technique for in situ monitoring of the actuators during dynamic high voltage actuation. From our measurement data the transient viscoelastic stretch response, the state of the compliant electrodes and their percolation limit, the response time, and the movement behavior can be accessed.