Moisture content monitoring of brick walls using the resistive method – selection of the sensors calibration scale

openaccess, Vol. 607 (3) 2023 / poniedziałek, 20 marca, 2023

(Open Access)

DOI: 10.15199/33.2023.03.09

Wójcik Robert, Kosiński Piotr, Misiewicz Joanna. 2023. Moisture content monitoring of brick walls using the resistive method – selection of the sensors calibration scale. Volume 607. Issue 3. Pages 38-41. Article in PDF file

Accepted for publication: 08.03.2023 r.

At the University of Warmia and Mazury in Olsztyn there have been developed impedance sensors for long-term monitoring of moisture content in brick walls [1] in response to this demand. Similarly, as with all indirect moisture content measurements, the use of the electric current flow, also requires carrying out procedures for scaling measuring devices [2, 3, 4, 5, 6]. The article discusses the selection of the optimal size of moisture standards, what is undoubtedly an important problem of calibration procedures. It was found that the current signal flows, sent both during single measurements and cyclically repeated as part of monitoring, change the physical properties of capillary porous structure of the walls. The range of interaction of the electrical signal with the wet structure of the testedmaterial was determined. The minimum size of the standards was specified, basing the representativeness of multi-material structures. Other factors affecting calibration accuracy have also been established.
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dr hab. inż. Robert Wójcik, prof. UWM, Uniwersytet Warmińsko-Mazurski, Wydział Geoinżynierii ORCID: 0000-0002-3142-7969
dr inż. Piotr Kosiński, Uniwersytet Warmińsko-Mazurski, Wydział Geoinżynierii ORCID: 0000-0003-4850-9909
mgr inż. Joanna Misiewicz, Uniwersytet Warmińsko-Mazurski, Wydział Geoinżynierii ORCID: 0000-0003-0613-0167

mgr inż. Joanna Misiewicz, Uniwersytet Warmińsko-Mazurski, Wydział Geoinżynierii ORCID: 0000-0003-0613-0167

joanna.misiewicz@uwm.edu.pl

Full paper:

DOI: 10.15199/33.2023.03.09

Article in PDF file