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

4 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 publicationProceedings of IEEE International Conference on Solid Dielectrics, ICSD
Pages117-120
Number of pages4
DOIs
Publication statusPublished - 2013
EventICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics - Bologna
Duration: 2013 Jun 302013 Jul 4

Other

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

Fingerprint

cables
communication cables
Cables
polyvinyl chloride
Telecommunication cables
Coaxial cables
Inverse transforms
Electric network analyzers
Low density polyethylenes
Polyethylene
Polyvinyl Chloride
Polyvinyl chlorides
Electromagnetic waves
polyethylenes
analyzers
electromagnetic radiation
Fourier transforms
Polymers
spatial resolution
frequency ranges

Keywords

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

ASJC Scopus subject areas

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

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 Proceedings of IEEE International Conference on Solid Dielectrics, ICSD (pp. 117-120). [6619799] https://doi.org/10.1109/ICSD.2013.6619799

Highly sensitive location method of an abnormal temperature point in a cable by frequency domain reflectometry. / Ohki, Yoshimichi; Hirai, Naoshi; Yamada, Takayuki; Kumagai, Susumu.

Proceedings of IEEE International Conference on Solid Dielectrics, ICSD. 2013. p. 117-120 6619799.

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

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 Proceedings of IEEE International Conference on Solid Dielectrics, ICSD., 6619799, pp. 117-120, ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics, Bologna, 13/6/30. https://doi.org/10.1109/ICSD.2013.6619799
Ohki Y, Hirai N, Yamada T, Kumagai S. Highly sensitive location method of an abnormal temperature point in a cable by frequency domain reflectometry. In Proceedings of IEEE International Conference on Solid Dielectrics, ICSD. 2013. p. 117-120. 6619799 https://doi.org/10.1109/ICSD.2013.6619799
Ohki, Yoshimichi ; Hirai, Naoshi ; Yamada, Takayuki ; Kumagai, Susumu. / Highly sensitive location method of an abnormal temperature point in a cable by frequency domain reflectometry. Proceedings of IEEE International Conference on Solid Dielectrics, ICSD. 2013. pp. 117-120
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