TR32-Database: Database of Transregio 32

[648] - EIT measurement system with high phase accuracy for the imaging of spectral induced polarization properties of soils and sediments

All available metadata of the dataset are listed below. Some features are available, e.g. download of dataset or additional description file.

Features
Citation
Zimmermann, E., Kemna, A., Berwix, J., Glaas, W., Vereecken, H., 2008. EIT measurement system with high phase accuracy for the imaging of spectral induced polarization properties of soils and sediments. Measurement Science and Technology, 19, 1 - 9. DOI: 10.1088/0957-0233/19/9/094010.
Identification
Title(s):Main Title: EIT measurement system with high phase accuracy for the imaging of spectral induced polarization properties of soils and sediments
Description(s):Abstract: A powerful method for the non-invasive structural characterization of material is electrical impedance tomography (EIT) combined with the capabilities of impedance spectroscopy. This method determines the complex resistivity magnitude and phase images at a set of different measurement frequencies. We are particularly interested in the application of such an advanced approach for the improved characterization of soils and sediments, which only show a weak polarizability. Here, typical phase values lie between 1 and 20 mrad only, requiring instrumentation with relatively high phase resolution and accuracy. In this paper, we present a new spectral EIT data acquisition system for laboratory applications, which operates in the frequency range from 1 mHz to 45 kHz and which was developed to meet these requirements. In this context, we also present a new measurement method based on current injection swapping, which leads to significantly improved phase images, particularly for higher measurement frequencies. The system and the new measurement method are tested on a water-filled tank and column containing different 2D and 3D targets (metallic and biological objects). The tests prove a phase accuracy of 1 mrad for frequencies of up to 1 kHz and higher, resulting in a clear discrimination of the objects on the basis of the reconstructed phase images.
Identifier(s):DOI: 10.1088/0957-0233/19/9/094010
Responsible Party
Creator(s):Author: Egon Zimmermann
Author: Andreas Kemna
Author: Joachim Berwix
Author: Walter Glaas
Author: Harry Vereecken
Publisher:IOP Publishing Ltd
Topic
TR32 Topic:Soil
Subject(s):CRC/TR32 Keywords: EIT, Impedance Spectrometer, Impedance Tomography, SIP, Electrical Soil, Sediment
File Details
File Name:2008_Zimmermann_MST_b.pdf
Data Type:Text
Size(s):9 Pages
File Size:1321 kB (1.29 MB)
Date(s):Issued: 2008-07-24
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:For internal use only
Access Limitations:For internal use only
Licence:TR32DB Data policy agreement
Geographic
North:-no map data
East:-
South:-
West:-
Measurement Region:Laboratory
Measurement Location:--Laboratory--
Specific Informations - Publication
Status:Published
Review:PeerReview
Year:2008
Type:Article
Article Type:Journal
Source:Measurement Science and Technology
Volume:19
Number Of Pages:9
Page Range:1 - 9
Metadata Details
Metadata Creator:Johann Alexander (Sander) Huisman
Metadata Created:2013-12-02
Metadata Last Updated:2013-12-02
Subproject:A3
Funding Phase:1
Metadata Language:English
Metadata Version:V40
Dataset Metrics
Page Visits:216
Metadata Downloads:0
Dataset Downloads:0
Dataset Activity
Features