Visualization of magnetic field corresponding to acoustic signal and estimation of magnetic source based on symmetry of magnetic field distribution

Takuto Kurosawa, Eri Ishizuka, Yasuhiro Oikawa, Minoru Konno, Masatoshi Asakawa, Yuya Suzuki

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

Abstract

A magnetic field corresponding to an acoustic signal is generated from an antenna, and by using a coil, it can be converted into an acoustic signal again. It is possible to estimate the location of the invisible antenna from the distribution of the received signal. This estimation is applied to the maintenance of gas pipes on the situation that the distance from the entrance to a maintenance area is known, but the piping route is unknown. It is possible to identify the maintenance areas of a gas pipe by inserting an antenna. The estimation is performed by manually listening to the received signal. However, it is difficult to identify an accurate point because there are only subtle differences between the volumes of each place. To solve this problem, we visualize the distribution of the received signal, and estimate the magnetic field using only acoustic signal. In addition, we propose a method to estimate the location of the invisible antenna automatically by using the symmetry of the distribution of the received signal.

Original languageEnglish
Title of host publicationProceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering
EditorsTyler Dare, Stuart Bolton, Patricia Davies, Yutong Xue, Gordon Ebbitt
PublisherThe Institute of Noise Control Engineering of the USA, Inc.
ISBN (Electronic)9781732598652
DOIs
Publication statusPublished - 2021
Event50th International Congress and Exposition of Noise Control Engineering, INTER-NOISE 2021 - Washington, United States
Duration: 2021 Aug 12021 Aug 5

Publication series

NameProceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering

Conference

Conference50th International Congress and Exposition of Noise Control Engineering, INTER-NOISE 2021
Country/TerritoryUnited States
CityWashington
Period21/8/121/8/5

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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