Analysis of wavelet transform in electric charge distribution in dielectric liquids using pressure wave method

Naoshi Hirai, Noriaki Takao, Sakae Nishimoto, Kiyomitsu Arii

Research output: Contribution to journalArticle

Abstract

In our laboratory, a polymer piezoelectric vibrator and an acoustic emission sensor have been used for generation of pressure waves in dielectric liquids. A large amount of noise is contained in experimental data of charge distribution obtained using the pressure wave method. For removal of this noise, the wavelet transform was used in the data analysis. The noise removal from and time-frequency analysis of experimental data were performed simultaneously. The removal of noise from data using the wavelet transform could make more clear waveform than waveform of measured data. Therefore, it was clear that the wavelet analysis can be applied to measurement of charge distribution in dielectric liquids using the pressure wave method.

Original languageEnglish
Pages (from-to)6282-6285
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume35
Issue number12 A
Publication statusPublished - 1996 Dec
Externally publishedYes

Fingerprint

Dielectric liquids
Electric charge
Charge distribution
electric charge
elastic waves
wavelet analysis
charge distribution
Wavelet transforms
liquids
Vibrators
waveforms
Wavelet analysis
Acoustic emissions
acoustic emission
Sensors
Polymers
sensors
polymers

Keywords

  • Decomposition
  • Noise removal
  • Pressure wave
  • Reconstruction
  • Time-frequency analysis
  • Wavelet transform

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering(all)

Cite this

Analysis of wavelet transform in electric charge distribution in dielectric liquids using pressure wave method. / Hirai, Naoshi; Takao, Noriaki; Nishimoto, Sakae; Arii, Kiyomitsu.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 35, No. 12 A, 12.1996, p. 6282-6285.

Research output: Contribution to journalArticle

@article{e518d99681c94cd7b73d008540c3852a,
title = "Analysis of wavelet transform in electric charge distribution in dielectric liquids using pressure wave method",
abstract = "In our laboratory, a polymer piezoelectric vibrator and an acoustic emission sensor have been used for generation of pressure waves in dielectric liquids. A large amount of noise is contained in experimental data of charge distribution obtained using the pressure wave method. For removal of this noise, the wavelet transform was used in the data analysis. The noise removal from and time-frequency analysis of experimental data were performed simultaneously. The removal of noise from data using the wavelet transform could make more clear waveform than waveform of measured data. Therefore, it was clear that the wavelet analysis can be applied to measurement of charge distribution in dielectric liquids using the pressure wave method.",
keywords = "Decomposition, Noise removal, Pressure wave, Reconstruction, Time-frequency analysis, Wavelet transform",
author = "Naoshi Hirai and Noriaki Takao and Sakae Nishimoto and Kiyomitsu Arii",
year = "1996",
month = "12",
language = "English",
volume = "35",
pages = "6282--6285",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "12 A",

}

TY - JOUR

T1 - Analysis of wavelet transform in electric charge distribution in dielectric liquids using pressure wave method

AU - Hirai, Naoshi

AU - Takao, Noriaki

AU - Nishimoto, Sakae

AU - Arii, Kiyomitsu

PY - 1996/12

Y1 - 1996/12

N2 - In our laboratory, a polymer piezoelectric vibrator and an acoustic emission sensor have been used for generation of pressure waves in dielectric liquids. A large amount of noise is contained in experimental data of charge distribution obtained using the pressure wave method. For removal of this noise, the wavelet transform was used in the data analysis. The noise removal from and time-frequency analysis of experimental data were performed simultaneously. The removal of noise from data using the wavelet transform could make more clear waveform than waveform of measured data. Therefore, it was clear that the wavelet analysis can be applied to measurement of charge distribution in dielectric liquids using the pressure wave method.

AB - In our laboratory, a polymer piezoelectric vibrator and an acoustic emission sensor have been used for generation of pressure waves in dielectric liquids. A large amount of noise is contained in experimental data of charge distribution obtained using the pressure wave method. For removal of this noise, the wavelet transform was used in the data analysis. The noise removal from and time-frequency analysis of experimental data were performed simultaneously. The removal of noise from data using the wavelet transform could make more clear waveform than waveform of measured data. Therefore, it was clear that the wavelet analysis can be applied to measurement of charge distribution in dielectric liquids using the pressure wave method.

KW - Decomposition

KW - Noise removal

KW - Pressure wave

KW - Reconstruction

KW - Time-frequency analysis

KW - Wavelet transform

UR - http://www.scopus.com/inward/record.url?scp=0030409368&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030409368&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0030409368

VL - 35

SP - 6282

EP - 6285

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 12 A

ER -