Highly sensitive location method of an abnormal temperature point in a cable by frequency domain reflectometry

Yoshimichi Ohki, Naoshi Hirai, Takayuki Yamada, Susumu Kumagai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

This paper demonstrates that it is possible to locate very precisely a point showing a high temperature in a polymer insulated cable. A coaxial communication cable with a length of 32 m insulated by low density polyethylene or a flat inhouse electric cord with a length of 21 m insulated by polyvinyl chloride was heated at different positions for different lengths. The ratio between the incident and reflected powers of electromagnetic waves was measured using a network analyzer in a wide frequency range and the obtained spectra were analyzed by inverse Fourier transform. As a result, the position exhibiting a temperature higher than the adjacent points can be located with a spatial resolution as short as 2.5 cm.

Original languageEnglish
Title of host publicationICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics
Pages117-120
Number of pages4
DOIs
Publication statusPublished - 2013 Dec 1
EventICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics - Bologna, Italy
Duration: 2013 Jun 302013 Jul 4

Publication series

NameProceedings of IEEE International Conference on Solid Dielectrics, ICSD
ISSN (Print)1553-5282
ISSN (Electronic)2159-1687

Other

OtherICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics
CountryItaly
CityBologna
Period13/6/3013/7/4

Keywords

  • Temperature monitoring
  • cable
  • frequency domain reflectometry
  • insulation diagnosis
  • location of degradation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Condensed Matter Physics

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  • Cite this

    Ohki, Y., Hirai, N., Yamada, T., & Kumagai, S. (2013). Highly sensitive location method of an abnormal temperature point in a cable by frequency domain reflectometry. In ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics (pp. 117-120). [6619799] (Proceedings of IEEE International Conference on Solid Dielectrics, ICSD). https://doi.org/10.1109/ICSD.2013.6619799