Microwave Non-Destructive Testing of Coatings and Paints Using Free Space Microwave Measurement

Authors

  • Norhayati Hamzah
  • Deepak Kumar Ghodgaonkar
  • Kamal Faizin Che Kasim
  • Zaiki Awang

DOI:

https://doi.org/10.24191/srj.v2i2.9329

Keywords:

X

Abstract

Microwave nondestructive testing (MNDT) techniques are applied to evaluate quality of anti-corrosive protective coatings and paints on metal surfaces. A tree-space microwave measurement (FSMM) system is used for MNDT of protective coatings. The FSMM system consists of transmit and receive spot-focusing horn lens antennas, a vector network analyzer, mode transitions and a computer. Diffraction effects at the edges of the sample are minimized by using spot-focusing horn lens antennas. Errors due to multiple reflections between antennas are corrected by using free-space LRL (line, reflect, line) calibration technique. We have measured complex reflection coefficient of polyurethane based paint which is coated on brass plates.

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Published

2005-12-31

How to Cite

Hamzah, N. ., Ghodgaonkar, D. K. ., Che Kasim, K. F. ., & Awang, Z. . (2005). Microwave Non-Destructive Testing of Coatings and Paints Using Free Space Microwave Measurement. Scientific Research Journal, 2(2), 17–23. https://doi.org/10.24191/srj.v2i2.9329

Issue

Section

Polymer and Composite