SPECTRAL BROADENING IN ULTRASONIC DOPPLER FLOWMETERS DUE TO UNSTEADY FLOW.

Sho Kikkawa, Takami Yamaguchi, Kazuo Tanishita, Motoaki Sugawara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

It is shown that time-varying velocity produces frequency modulation of the backscattered signal in ultrasonic Doppler flowmeters. Furthermore, for blood flow in the ascending aorta, it is estimated that the spectrum of the backscattered signal would have a very wide bandwidth in the acceleration phase.

Original languageEnglish
Pages (from-to)388-391
Number of pages4
JournalIEEE Transactions on Biomedical Engineering
VolumeBME-34
Issue number5
Publication statusPublished - 1987 May
Externally publishedYes

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Flowmeters
Frequency modulation
Unsteady flow
Blood
Ultrasonics
Bandwidth

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Kikkawa, S., Yamaguchi, T., Tanishita, K., & Sugawara, M. (1987). SPECTRAL BROADENING IN ULTRASONIC DOPPLER FLOWMETERS DUE TO UNSTEADY FLOW. IEEE Transactions on Biomedical Engineering, BME-34(5), 388-391.

SPECTRAL BROADENING IN ULTRASONIC DOPPLER FLOWMETERS DUE TO UNSTEADY FLOW. / Kikkawa, Sho; Yamaguchi, Takami; Tanishita, Kazuo; Sugawara, Motoaki.

In: IEEE Transactions on Biomedical Engineering, Vol. BME-34, No. 5, 05.1987, p. 388-391.

Research output: Contribution to journalArticle

Kikkawa, S, Yamaguchi, T, Tanishita, K & Sugawara, M 1987, 'SPECTRAL BROADENING IN ULTRASONIC DOPPLER FLOWMETERS DUE TO UNSTEADY FLOW.', IEEE Transactions on Biomedical Engineering, vol. BME-34, no. 5, pp. 388-391.
Kikkawa S, Yamaguchi T, Tanishita K, Sugawara M. SPECTRAL BROADENING IN ULTRASONIC DOPPLER FLOWMETERS DUE TO UNSTEADY FLOW. IEEE Transactions on Biomedical Engineering. 1987 May;BME-34(5):388-391.
Kikkawa, Sho ; Yamaguchi, Takami ; Tanishita, Kazuo ; Sugawara, Motoaki. / SPECTRAL BROADENING IN ULTRASONIC DOPPLER FLOWMETERS DUE TO UNSTEADY FLOW. In: IEEE Transactions on Biomedical Engineering. 1987 ; Vol. BME-34, No. 5. pp. 388-391.
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