Development of light beam CT system for measurement of ultrasonic wave fields

Iwaki Akiyama, Masato Nakajima, Hisao Waki, Shinichi Yuta

Research output: Contribution to journalArticle

Abstract

This paper describes a development of the light beam CT system for measuring ultrasonic fields and the obtained results. A system to measure the projection data from various directions was developed, and sound fields produced by various transducers were reconstructed. The results were compared with the experimental data obtained by a hydrophone and the numerically calculated values. The degrading of the quantitativity of this method due to the fact that the ultrasonic wavefront is not really a plane (this is a crucial point in the method), was examined by using a computer simulation. The results show that the errors are negligible in the far-field region of a plane-type transducer or in the focal plane of a concave-type transducer. However, the errors are significant in the rest of the region.

Original languageEnglish
Pages (from-to)51-60
Number of pages10
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume71
Issue number5
Publication statusPublished - 1988 May
Externally publishedYes

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Ultrasonic waves
Transducers
Ultrasonics
Hydrophones
Acoustic fields
Wavefronts
Computer simulation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Development of light beam CT system for measurement of ultrasonic wave fields. / Akiyama, Iwaki; Nakajima, Masato; Waki, Hisao; Yuta, Shinichi.

In: Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi), Vol. 71, No. 5, 05.1988, p. 51-60.

Research output: Contribution to journalArticle

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