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Electroelastic optical fiber positioning with submicrometer accuracy. Model and experiment

: Kofod, G.; McCarthy, D.N.; Krissler, J.; Lang, G.; Jordan, G.


Applied Physics Letters 94 (2009), No.20, Art. 202901, 3 pp.
ISSN: 0003-6951
ISSN: 1077-3118
Journal Article
Fraunhofer IZM ()

We present accurate electromechanical measurements on a balanced push-pull dielectric elastomer actuator, demonstrating submicrometer accurate position control. An analytical model based on a simplified pure-shear dielectric elastomer film with prestretch is found to capture the voltage-displacement behavior, with reduced output due to the boundary conditions. Two complementary experiments show that actuation coefficients of 0.5-1 nm/V-2 are obtainable with the demonstrated device, enabling motion control with submicrometer accuracy in a voltage range below 200 V.