Flow velocity profile measurement of scattering liquid using Doppler optical coherence tomography

Jukka T. Hast; Tuukka Prykari; Erkki Alarousu; Risto A. Myllyla; Alexander V. Priezzhev

doi:10.1117/12.479272

23 July 2003 Flow velocity profile measurement of scattering liquid using Doppler optical coherence tomography

Jukka T. Hast, Tuukka Prykari, Erkki Alarousu, Risto A. Myllyla, Alexander V. Priezzhev

Proceedings Volume 4965, Optical Diagnostics and Sensing in Biomedicine III; (2003) https://doi.org/10.1117/12.479272
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

The aim of this study was to measure the velocity and velocity profile of 0.3% Intralipid mixture in a 1.5-mm thick glass capillary using Doppler Optical Coherence Tomography (DOCT). First, while still empty, the dimensions of the capillary were measured. The outer diameter was 1.50 mm ± 0.01 mm while the lumen diameter was 1.01 ± 0.01 mm. Then, having filled the capillary with 0.3% solution, the lumen diameter was measured again. The mean refractive index of the solution was calculated and turned out to be 1.36 ± 0.01 mm. During the next stage, flow measurements were performed at an angle of 88° between the illuminating beam and the velocity vector of the fluid. The velocity profile, based on a set of 10 measurements, was calculated from the DOCT signal using a discrete Fourier transform in 32 sections of the capillary. The maximum velocity, located in the middle part of the capillary, was 0.256 ± 0.035 m/s. The results show that the flow velocity profile of 0.3% Intralipid solution can be obtained from a glass capillary.

Citation Download Citation

Jukka T. Hast, Tuukka Prykari, Erkki Alarousu, Risto A. Myllyla, and Alexander V. Priezzhev "Flow velocity profile measurement of scattering liquid using Doppler optical coherence tomography", Proc. SPIE 4965, Optical Diagnostics and Sensing in Biomedicine III, (23 July 2003); https://doi.org/10.1117/12.479272

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