Influence of Electrode Material in Acoustic Attenuation Factors Calculation in Space Charge Measurements

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

Nowadays, the most common procedures to measure space charges in dielectrics are based on acoustic and thermal methods. For the acoustic methods, one of the biggest challenges in thick dielectrics is the inherent mechanical losses of the material. Several post-processing methods exist to compensate the acoustic losses at the propagating waves. These methods rely on comparing the measured signals coming from the electrodes, which due to the acoustic divergence at the dielectric-electrode interface, may rise to errors. In this paper a comparison of the effects of the electrode configurations is performed and validated using a reference sample. Afterwards, a method for the attenuation compensation avoiding the dielectric-electrode interface by a reference sample is presented.
Original languageEnglish
Title of host publication2019 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE)
PublisherIEEE
Pages166-169
Number of pages4
ISBN (Electronic)978-1-5386-8434-4
ISBN (Print)978-1-5386-8435-1
DOIs
Publication statusPublished - 2019
EventICEMPE 2019: 2nd International Conference on Electrical Materials and Power Equipment - Guangzhou, China
Duration: 7 Apr 201910 Apr 2019

Conference

ConferenceICEMPE 2019
CountryChina
CityGuangzhou
Period7/04/1910/04/19

Keywords

  • Electrodes
  • Acoustics
  • Dielectrics
  • Attenuation
  • Acoustic measurements
  • Transfer functions
  • Space charge

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