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Kvantovaya Elektronika, 2021, Volume 51, Number 1, Pages 33–37 (Mi qe17379)  

This article is cited in 1 scientific paper (total in 1 paper)

Laser technologies in biomedical applications

Analysis of the pulse waveform in arterial vessels using the spectrum of the autodyne signal of a laser interferometer

A. V. Skripal, S. Yu. Dobdin, A. Dzhafarov, I. A. Chernetsova

Saratov State University
References:
Abstract: The results of measuring the derivative of the pulse wave using a laser autodyne based on the Fourier analysis of the lowfrequency spectrum of the interference signal are presented. The features of using the windowed Fourier transform for window types and window widths are discussed. The correlation coefficient between the derivative obtained by direct differentiation of the sphygmographic signal and the frequency dependence of the windowed Fourier transform obtained from the analysis of the interference signal is calculated. It is shown that the amplitude of biovibration of the skin surface has the greatest influence on the correlation of the frequencies of the window spectrum of the autodyne signal with direct measurements of the pulse wave parameters by the sphygmographic method. Using a hardware-software system, we measured the sphygmogram of the pulse wave in the radial artery in a 19-year-old man who did not suffer from cardiovascular diseases. The derivative of the pulse wave obtained from the sphygmogram was compared with the dependence of the frequencies of the window spectrum of the autodyne signal. A comparative analysis of the dependences of the frequencies of the spectral harmonics of the window method with the derivative of the sphygmographic pulse showed a good correlation at the amplitudes of biovibration of the skin surface exceeding 10 μm.
Keywords: laser interferometry, autodyne, semiconductor laser, laser radiation modulation, distance measurement, self-mixing, pulse wave, pulse wave derivative, spectral signal analysis, windowed Fourier transform.
Funding agency Grant number
Russian Science Foundation 19-79-00122
Received: 09.11.2020
English version:
Quantum Electronics, 2021, Volume 51, Issue 1, Pages 33–37
DOI: https://doi.org/10.1070/QEL17477
Bibliographic databases:
Document Type: Article
Language: Russian


Citation: A. V. Skripal, S. Yu. Dobdin, A. Dzhafarov, I. A. Chernetsova, “Analysis of the pulse waveform in arterial vessels using the spectrum of the autodyne signal of a laser interferometer”, Kvantovaya Elektronika, 51:1 (2021), 33–37 [Quantum Electron., 51:1 (2021), 33–37]
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  • https://www.mathnet.ru/eng/qe17379
  • https://www.mathnet.ru/eng/qe/v51/i1/p33
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Квантовая электроника Quantum Electronics
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