Evaluation of the fast impedance spectroscopy method in the laboratory measurement system

Author

Kowalewski, Michal ; Lentka, Grzegorz ; Hoja, Jerzy

Author_Institution

Fac. of Electron., Telecommun. & Inf., Gdansk Univ. of Technol., Gdansk, Poland

fYear

2012

fDate

13-16 May 2012

Firstpage

1735

Lastpage

1740

Abstract

In this paper the method for fast impedance spectroscopy of technical objects with very high impedance (|Z_x| ≥ 1 GΩ) is evaluated by means of simulation and practical experiment. The method is based on excitation of an object, with a square pulse and measurements of voltage and current responses with DAQ card. The object impedance spectrum is obtained with use of continuous Fourier transform. Some improvements of the method concerned on sampling moments optimization are discussed. The method is evaluated in Matlab by means of simulation and then practically verified on constructed laboratory impedance spectroscopy measurement system.

Keywords

Fourier transform optics; spectroscopy; DAQ card; Matlab; continuous Fourier transform; current responses; fast impedance spectroscopy method; laboratory measurement system; sampling moments optimization; voltage responses; Current measurement; Data acquisition; Impedance; Impedance measurement; Time frequency analysis; Voltage measurement; continuous Fourier transform; impedance spectroscopy; measurement laboratory system; pulse excitation;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International

Conference_Location

Graz

ISSN

1091-5281

Print_ISBN

978-1-4577-1773-4

Type

conf

DOI

10.1109/I2MTC.2012.6229329

Filename

6229329