Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/app12062879
Keywords
millimeter-wave; reflectometer; non-destructive inspection; imaging; industrial application
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This study utilized radar reflectometers to measure the inside of a building wall and achieve imaging of the fit between tile and concrete wall, as well as quantitative evaluation of the wall condition using the phase interference effect.
Featured Application Non-destructive exterior wall diagnostic device. Progress in microwave and millimeter-wave technologies has enabled advanced diagnostics for industrial applications. The transmission, reflection, scattering and radiation processes of electromagnetic waves are utilized as diagnostic principles. Specifically, the reflectometric method has gained importance in various applications due to the possibility of the high localization and accessibility of measurements, as well as the non-destructive nature of the systems. In this paper, radar reflectometers were applied to the measurement of the inside of a building wall, that is, the inspection of tile materials attached to a concrete wall. The measurement principle utilizes the phase interference effect of the reflected wave due to the multiple reflections between the two layers (Fabry-Perot effect). The results show the imaging inside the surface related to the peering condition between the tile and concrete wall, and the quantitative evaluation of the condition with non-destructive inspection.
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