Non-Destructive Testing Using Microwave in TE Mode for Detecting Axial Cracks in a Metal Pipe

Takuya Katagiri, Kota Sasaki, Noritaka Yusa, Hidetoshi Hashizume

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)


A new mode convertor, which has four coaxial cable connectors and four semi-rigid cables situated circumferentially, was fabricated to propagate TE mode microwaves in a circular pipe in order to detect axial cracks appearing in the inner surface of the pipe. In this study, the reflections were measured using a network analyzer by propagating microwaves as a pulse through the mode convertor into a brass pipe that contains the slit on the inner surface. The reflections were evaluated with different orientations, lengths, and positions of the slit. The experimental results showed a clear difference between the signals with and without the slit.

Original languageEnglish
Title of host publicationElectromagnetic Nondestructive Evaluation (XX)
PublisherIOS Press
Number of pages7
ISBN (Electronic)9781614997665
Publication statusPublished - 2017

Publication series

NameStudies in Applied Electromagnetics and Mechanics
ISSN (Print)1383-7281
ISSN (Electronic)1879-8322


  • axial cracks
  • microwave
  • mode convertor
  • TE mode

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering


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