title: Nonlinear phenomenon of interfacial polarization immittance of a Pt electrode.
abstract: Description of a computerized, automated method to measure the interfacial polarization immittance of a Pt electrode in nonlinear range is presented. The classical three-electrode setup is used for measurements in conjunction with a special purpose software implemented on a Unix computer using C language. A collection of data at very low frequencies (below 2 Hz) and at high input intensities with various dc biases imposed on the input are presented to show the behavior of the interface in nonlinear range. The instrument also provides on-line harmonic analysis of the output signal, by calculating the first four Fourier series coefficients, in response to a pure sinusoidal input.
authors.affiliation: Institute of Biomedical Engineering and Science, Drexel University, Philadelphia, PA 19104.
authors.forename: M
authors.initials: M
authors.lastname: Moussavi
authors.forename: H H
authors.initials: HH
authors.lastname: Sun
authors.forename: H P
authors.initials: HP
authors.lastname: Schwan
authors.forename: A
authors.initials: A
authors.lastname: Richter
mesh_terms: D004566:Electrodes; D004867:Equipment Design; D005583:Fourier Analysis; D010984:Platinum; D011381:Programming Languages; D012815:Signal Processing, Computer-Assisted; D012984:Software
chemical_list: D010984:Platinum