Highly sensitive detection of distorted points in a cable by frequency domain reflectometry

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

10 Citations (Scopus)

Abstract

This paper demonstrates that the location in an electric cable where some mechanical distortion appears can be estimated very precisely by a method based on frequency domain reflectometry and inverse fast Fourier transform. A coaxial communication cable insulated by low density polyethylene or a triplex cable insulated with flame-retardant ethylene propylene diene copolymer was distorted at different positions, and electromagnetic waves in a frequency range from one to several hundred MHz or 1.5 GHz were transmitted through the cable. The ratio between the incident power and the reflected power was measured using a network analyzer. As a result, the position in each cable where the distortion was given can be located with a spatial resolution as short as 1.0 cm, which indicates high sensitivity of this method.

Original languageEnglish
Title of host publicationProceedings of 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
PublisherInstitute of Electrical Engineers of Japan
Pages144-147
Number of pages4
ISBN (Print)9784886860866
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 International Symposium on Electrical Insulating Materials, ISEIM 2014 - Niigata, Japan
Duration: 2014 Jun 12014 Jun 5

Publication series

NameProceedings of the International Symposium on Electrical Insulating Materials

Other

Other2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
CountryJapan
CityNiigata
Period14/6/114/6/5

Keywords

  • cable condition monitoring
  • characteristic impedance
  • frequency domain reflectometry
  • inverse Fourier transform
  • location of degradation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Hirai, N., & Ohki, Y. (2014). Highly sensitive detection of distorted points in a cable by frequency domain reflectometry. In Proceedings of 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014 (pp. 144-147). [6870741] (Proceedings of the International Symposium on Electrical Insulating Materials). Institute of Electrical Engineers of Japan. https://doi.org/10.1109/ISEIM.2014.6870741