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Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib

Microwave non-destructive testing of paint and primer in components commonly used in moist and salty environment are very crucial in the investigation of signs of corrosion. In this paper, we present a method for measuring the dielectric properties and loss factor of paint coated aluminium panels us...

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Main Author: Ebrahim Saib, Bibi Nawsheen
Format: Article
Language:English
Published: 2009
Online Access:https://ir.uitm.edu.my/id/eprint/39851/1/39851.pdf
https://ir.uitm.edu.my/id/eprint/39851/
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spelling my.uitm.ir.398512023-08-29T08:32:25Z https://ir.uitm.edu.my/id/eprint/39851/ Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib Ebrahim Saib, Bibi Nawsheen Microwave non-destructive testing of paint and primer in components commonly used in moist and salty environment are very crucial in the investigation of signs of corrosion. In this paper, we present a method for measuring the dielectric properties and loss factor of paint coated aluminium panels using the metal-backed method. Complex reflection coefficient (Sn) is measured for Plexiglas container backed by metal plate. Dielectric constant and loss factor were measured for corrode and non-corrode paint coated aluminium panel in the frequency range of 18 to 26GHz (K-Band). The thru, reflect and line (TRL) calibration technique were used to eliminate the effect of undesirable multiple reflections. The dielectric constant for corrode paint coated aluminium panels is 2.9± 0.1 and for non-corrode paint coated aluminium panel is 2.5±0.1, showing that the dielectric constant of corrode samples are higher than non-corrode ones. The loss factor for corrode aluminium panels is ranged from -0.02 to -0.01 and for non-corrode aluminium panels, the loss factor is from -0.083 to -0.008. Loss factor for corrode aluminium panel is higher than that of non-corrode aluminium panel. The differences could be due to errors in the magnitude and phase of Su , surface of the paint coated aluminium panel and the air-gap effect during the assembly of the sample. 2009 Article NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/39851/1/39851.pdf Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib. (2009) pp. 1-7. (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
description Microwave non-destructive testing of paint and primer in components commonly used in moist and salty environment are very crucial in the investigation of signs of corrosion. In this paper, we present a method for measuring the dielectric properties and loss factor of paint coated aluminium panels using the metal-backed method. Complex reflection coefficient (Sn) is measured for Plexiglas container backed by metal plate. Dielectric constant and loss factor were measured for corrode and non-corrode paint coated aluminium panel in the frequency range of 18 to 26GHz (K-Band). The thru, reflect and line (TRL) calibration technique were used to eliminate the effect of undesirable multiple reflections. The dielectric constant for corrode paint coated aluminium panels is 2.9± 0.1 and for non-corrode paint coated aluminium panel is 2.5±0.1, showing that the dielectric constant of corrode samples are higher than non-corrode ones. The loss factor for corrode aluminium panels is ranged from -0.02 to -0.01 and for non-corrode aluminium panels, the loss factor is from -0.083 to -0.008. Loss factor for corrode aluminium panel is higher than that of non-corrode aluminium panel. The differences could be due to errors in the magnitude and phase of Su , surface of the paint coated aluminium panel and the air-gap effect during the assembly of the sample.
format Article
author Ebrahim Saib, Bibi Nawsheen
spellingShingle Ebrahim Saib, Bibi Nawsheen
Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib
author_facet Ebrahim Saib, Bibi Nawsheen
author_sort Ebrahim Saib, Bibi Nawsheen
title Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib
title_short Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib
title_full Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib
title_fullStr Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib
title_full_unstemmed Measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26GHz (K Band) / Bibi Nawsheen Ebrahim Saib
title_sort measurement of dielectric constant of paint coated aluminium panel through microwave non destructive testing at frequency 18 to 26ghz (k band) / bibi nawsheen ebrahim saib
publishDate 2009
url https://ir.uitm.edu.my/id/eprint/39851/1/39851.pdf
https://ir.uitm.edu.my/id/eprint/39851/
_version_ 1776250533654298624
score 13.211869

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