Collect. Czech. Chem. Commun. 1997, 62, 420-441

Dynamics of Electrodiffusion Friction Probes. II. Shape-Dependent Impedance

Ondřej Wein, Václav Sobolík and Jaroslav Tihon

Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic,165 02 Prague 6-Suchdol, Czech Republic


The existing linear (impedance) theory of frequency response is corrected and generalized for electrodiffusion friction probes of any shape. Special attention is paid to the dynamic calibration of real electrodiffusion probes with uncertain geometry by the potentiostatic (voltage-step) transient method.

Keywords: Unsteady diffusion layer; Turbulence measurements; Frequency response.