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Items for "impedance spectroscopy"

A Validated Model for the Electromagnetic Flowmeter´s Measuring Cell

This paper proposes as well a measurement model for the electromagnetic flowmeter’s measuring cell that constitutes an off-line measurement model for the electromagnetic flowmeter with which it is possible to try different signal processing algorithms to estimate the flowrate value...

Keywords: electrode/electrolyte interface, measurement cell, impedance spectrometry, impedance spectroscopy

06/2006 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag
Method of Soil Moisture Measurement by Impedance Spectroscopy with Soil Type Recognition for In-Situ Applications

Soil moisture sensor systems need extensive calibration processes because of the dependence on soil properties...

Keywords: soil moisture measurement, impedance spectroscopy, compensation of influence effects, principal components analysis, k-nearest neighbour method

07/2006 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag
Varied Excitation for the Improving of Information Extraction from Signals of Single Sensors

Different approaches can be pursued in order to improve sensory information. The approach of this work is using one single sensor element under varied excitation, such as current or frequency...

Keywords: sensor signal processing, model-based signal processing, control parameter, impedance spectroscopy

07/2006 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag
A Way for Determining the Effective Three Phase Boundary Width of Solid State Electrochemical Reactions from the Primary and Secondary Current Distribution at Microelectrodes

A way is suggested for determining the effective three phase boundary width of electrodes on solid electrolytes from the difference between the electrolyte resistance of the primary and the secondary current distribution at a circular microelectrode...

Keywords: impedance spectroscopy, Three Phase Boundary, Solid Electrolyte, Electrode Reaction

09/2007 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag
Carbon Nanotubes and Electrochemistry

Rigid carbon nanotube (CNT) polymer composites were characterized as bare electrochemical transducers and as support for (bio)functionalization...

Keywords: Carbon nanotubes, Functionalization, Electrochemistry, biosensors, impedance spectroscopy

09/2007 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag
Hydrogen Adsorption on Activated Platinum Electrodes – An Electrochemical Impedance Spectroscopy Study

On the way to prepare stable platinum electrodes for the characterization of the Hupd reaction by electrochemical impedance measurements, a novel, feather-like platinum surface modification was found and characterized...

Keywords: Platinum Electrodes, activation, morphology, Hupd, impedance spectroscopy

09/2007 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag
Multikanalsystem zur nichtinvasiven Funktions- und Zustandsanalyse von Organen und Gewebe / A Multichannel Device for the Noninvasive Analysis of the State and Function of Organs and Tissues

In dieser Arbeit wird ein leistungsfhiges, modulares Forschungsgert beschrieben, mit dem die passiven elektrischen Eigenschaften von biologischem Gewebe ber deren elektrische Impedanz nichtinvasiv im Frequenzbereich von 1 kHz bis 1 MHz untersucht werden knnen...

Keywords: Multikanalsystem, nichtinvasiv, Bioimpedanz, Impedanzspektroskopie, Multichannel system, Non-invasive, Bio-impedance, impedance spectroscopy

09/2004 | Biomedizinische Technik, Walter de Gruyter