Results 211 to 220 of about 208,336 (251)
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Nonlinear charge-voltage relationship in constant phase element
AEU - International Journal of Electronics and Communications, 2020Abstract The constant phase element (CPE) or fractional-order capacitor is an electrical device that has an impedance of the form Z ( s ) = 1 / C α s α , where C α is the CPE parameter and α is a fractional dispersion coefficient of values between 0 and 1.
Anis Allagui +2 more
exaly +2 more sources
On a possible physical origin of the constant phase element
Electrochimica Acta, 2016Abstract Despite the numerous use of the constant phase element (CPE) in the modeling of the impedance characteristics of the electrochemical systems, the physical reasoning of this non-intuitive element is not clear. In this paper, the CPE impedance is analytically calculated using the anomalous diffusion theory.
Seyed Mohammad Rezaei Niya
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A constant phase element sensor for monitoring microbial growth
Sensors and Actuators B: Chemical, 2006The construction and performance of a novel constant phase element (CPE) sensor for monitoring microbial growth has been reported in this paper. The signal conditioning circuit measures the changes in the phase angle of the impedance characteristics of the probe.
Siddhartha Sen +2 more
exaly +2 more sources
Realization of a Constant Phase Element and Its Performance Study in a Differentiator Circuit
IEEE Transactions on Circuits and Systems Part 2: Express Briefs, 2006A simple method for fabricating a constant phase element (CPE) has been discussed. Dependence of the phase angle on several physical parameters have also been elaborated. Finally, a fractional-order differentiator circuit has been constructed using the CPE, and its performance has been compared with the simulated ...
Karabi Biswas
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Decoupling the magnitude and phase in a constant phase element
Journal of Electroanalytical Chemistry, 2021Abstract The success of fractional-order fractance (FOF) as a modeling tool in (photo)bio(electro)chemical systems can be readily gauged by the large body of research work that has been conducted over the past few years in terms of materials fabrication, building integer-order emulators of their behavior, as well as applications in filter design ...
Anis Allagui +2 more
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The Origin of the Constant Phase Element
The Journal of Physical Chemistry Letters, 2022The constant phase element (CPE) is usually observed at solid electrodes. It is a source of controversies and misunderstandings. In this Viewpoint, theory, properties, experimental results, and the origin of the CPE are presented and discussed.
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Realization of fractional order circuits by a Constant Phase Element
European Journal of Control, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Buscarino, A. +3 more
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RC models of a constant phase element
International Journal of Circuit Theory and Applications, 2011SUMMARYThe paper describes models of a constant‐phase element consisting of passive R and C components. The models offer any input impedance argument (phase) between −90° and 0° over a selectable frequency band covering several decades. The design procedure makes it possible to choose values of average phase, phase ripple, frequency bandwidth, and ...
Juraj Valsa, Jirí Vlach
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On Interpretation of Constant-Phase Elements
ECS Meeting Abstracts, 2016Electrical circuits invoking constant-phase elements (CPE) are often used to fit impedance data arising from a broad range of experimental systems. The CPE is often used simply as a way to improve the fit of a model to impedance data, justified by a vague assertion that a distribution of time constants is present in the system under investigation.
Mark E. Orazem +4 more
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On Time-Constant Distributions Associated with the Constant-Phase Element
ECS Meeting Abstracts, 2010Abstract not Available.
Bryan Hirschorn +5 more
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