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Proceedings Paper

Phase-shifting microwave interferometry for nondestructive testing
Author(s): Antonin Miks; Jiri Novak
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Paper Abstract

Our work describes a method for wave-front shape evaluation in microwave range. The evaluation is carried out by measurement and analysis of the interference field that originates from interference of the reference microwave field with the investigated (object) wave field. The phase of investigated microwave field is then determined from values of squared amplitude of the electric field intensity using the phase-shifting technique. The advantage of the proposed method is the fact that the method is based only on scalar measurements of microwave field. The proposed evaluation method is an analogy to phase-shifting interferometry in optical testing, but it uses microwaves instead of optical wavelengths. Due to physical properties of microwaves, the method can be used for various applications in nondestructive testing.

Paper Details

Date Published: 20 April 2006
PDF: 5 pages
Proc. SPIE 6158, Lightmetry and Light and Optics in Biomedicine 2004, 61580H (20 April 2006); doi: 10.1117/12.675774
Show Author Affiliations
Antonin Miks, Czech Technical Univ. (Czech Republic)
Jiri Novak, Czech Technical Univ. (Czech Republic)


Published in SPIE Proceedings Vol. 6158:
Lightmetry and Light and Optics in Biomedicine 2004
Katarzyna Kolacz; Jacek Sochacki, Editor(s)

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