Novel electrode design for non-destructive resistivity measurement on material in geotechnical standard sample cylinders
Dahlin, Torleif LU ; Lumetzberger, Mikael LU ; Hedblom, Per LU ; Rejkjär, Simon LU and Olsson, Per-Ivar LU
(2023)
Near Surface Geoscience 2023
- Abstract
- We present a novel design of an electrode arrangement for measurement of the resistivity of soil samples contained in a sample cylinder used in standard geotechnical site investigations in Sweden. The objective is to make it possible to measure the resistivity of the same samples that are to be used for mechanical tests, without disturbing the samples in order to get unbiased mechanical test data. A design with four piece-of- pie shaped electrodes integrated in the lids in each end of the sample has been tested and evaluated. Temperature sensors are embedded in the electrode lids to allow temperature compensation of the measured data.
Alternative electrode designs were modelled numerically with the finite element method (FEM)... (More) - We present a novel design of an electrode arrangement for measurement of the resistivity of soil samples contained in a sample cylinder used in standard geotechnical site investigations in Sweden. The objective is to make it possible to measure the resistivity of the same samples that are to be used for mechanical tests, without disturbing the samples in order to get unbiased mechanical test data. A design with four piece-of- pie shaped electrodes integrated in the lids in each end of the sample has been tested and evaluated. Temperature sensors are embedded in the electrode lids to allow temperature compensation of the measured data.
Alternative electrode designs were modelled numerically with the finite element method (FEM) prior to the prototype manufacturing. Measurement tests with water filled sample cylinders show that stacking and reciprocal errors can be kept below 1% provided that suitable measurement settings and sequences are used. The geometrical factors depends on the distance between the electrodes in each end of the cylinder, i.e. varies with the length of the sample, and must be determined experimentally or via FEM modelling.
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Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/0e9880bb-7848-4551-a99e-9b4bfb216020
- author
- Dahlin, Torleif
LU
; Lumetzberger, Mikael
LU
; Hedblom, Per
LU
; Rejkjär, Simon
LU
and Olsson, Per-Ivar
LU
- organization
- publishing date
- 2023-08
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Procs. Near Surface Geoscience 2023
- pages
- 5 pages
- conference name
- Near Surface Geoscience 2023
- conference location
- Edinburgh, United Kingdom
- conference dates
- 2023-09-03 - 2023-09-07
- external identifiers
-
- scopus:85182933220
- DOI
- 10.3997/2214-4609.202320096
- project
- Assessment of Soil Stabilisation using Electrical Resisitivity Tomography
- language
- English
- LU publication?
- yes
- id
- 0e9880bb-7848-4551-a99e-9b4bfb216020
- date added to LUP
- 2023-09-15 11:34:58
- date last changed
- 2024-02-29 00:02:09
@inproceedings{0e9880bb-7848-4551-a99e-9b4bfb216020,
abstract = {{We present a novel design of an electrode arrangement for measurement of the resistivity of soil samples contained in a sample cylinder used in standard geotechnical site investigations in Sweden. The objective is to make it possible to measure the resistivity of the same samples that are to be used for mechanical tests, without disturbing the samples in order to get unbiased mechanical test data. A design with four piece-of- pie shaped electrodes integrated in the lids in each end of the sample has been tested and evaluated. Temperature sensors are embedded in the electrode lids to allow temperature compensation of the measured data.<br/><br/>Alternative electrode designs were modelled numerically with the finite element method (FEM) prior to the prototype manufacturing. Measurement tests with water filled sample cylinders show that stacking and reciprocal errors can be kept below 1% provided that suitable measurement settings and sequences are used. The geometrical factors depends on the distance between the electrodes in each end of the cylinder, i.e. varies with the length of the sample, and must be determined experimentally or via FEM modelling.<br/>}},
author = {{Dahlin, Torleif and Lumetzberger, Mikael and Hedblom, Per and Rejkjär, Simon and Olsson, Per-Ivar}},
booktitle = {{Procs. Near Surface Geoscience 2023}},
language = {{eng}},
title = {{Novel electrode design for non-destructive resistivity measurement on material in geotechnical standard sample cylinders}},
url = {{https://lup.lub.lu.se/search/files/158571141/Dahlin_et_al_EAGE_NSG2023_ASSERT_lab_devices.pdf}},
doi = {{10.3997/2214-4609.202320096}},
year = {{2023}},
}