Wyniki 1-1 spośród 1 dla zapytania: authorDesc:"Michał OLESZEK"

A hybrid tomography for assessing the moisture level of walls and building condition DOI:10.15199/48.2019.02.23

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The non-destructive method [4,20,26,27,34] of brick wall insulation is tested using electrical impedance tomography (EIT). The aim of the presented method is to obtain image reconstruction using the proposed solution. The set was used to determine the humidity of the test wall on specially constructed models. The presented algorithms have been successfully used in the reconstruction of model wall measurement data. These approaches were based on the sensitivity analysis. An effective algorithm for solving forward and inverse problems would also improve many numerical results of the proposed methods. In modeling the problem in electrical tomography, it is required to identify unknown conductivities from near-limit potential measurements [17-19,21]. The discussed technique can be used to solve inverse problems in electrical impedance tomography. Fig. 1. Hybrid tomography system. Electrical tomography consists in restoring the conductivity of the interior of the tested object with the knowledge of currents and tensions imposed on its surface. Most of the available research methods allow only a point evaluation of moisture, thanks to which it is possible to achieve only the discrete distribution itself. Permeation of moisture in the walls of old buildings, which are in direct contact with the soil, leads to migration of soluble salts in relation to many wall problems. Building porous materials (eg bricks or concrete), both natural and made, has pores (like a sponge). The data collection system collects the measured voltage from the electrode and then processes the data [1-3,5-11,13-15,28-33]. Figure 1 presents the model of a hybrid tomography system. Measurement system The electrical tomography is a technique of i[...]

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