  A simple theory of electromechanical transduction for single-charge-carrier
double-layer electroactuators is developed, in which the ion distribution and
curvature are mutually coupled. The obtained expressions for the dependence of
curvature and charge accumulation on the applied voltage, as well as the
electroactuation dynamics, are compared with literature data. The mechanical-
or sensor- performance of such electroactuators appears to be determined by
just three cumulative parameters, with all of their constituents measurable,
permitting a scaling approach to their design.
