Visualization of dynamic boiling processes using high-speed optical coherence tomography

Kirsten, Lars; Domaschke, Thomas; Schneider, Clemens; Walther, Julia; Meißner, Sven; Hampel, Rainer; Koch, Edmund

doi:10.1007/s00348-015-1921-y

Cited by 6 publications

(2 citation statements)

References 37 publications

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“…While Doppler methods are mostly applied to the measurement of blood flow, where the erythrocytes form the scattering particles, oil droplets from Intralipid (Kirsten et al, 2015), polystyrene microspheres (Jonas et al, 2011;Kirsten et al, 2015) and other particles down to sub-micrometre size (Cimalla et al, 2015;Grombe et al, 2016) can be used as tracers.…”

Section: Potential For Flow and Aerosol Measurementsmentioning

confidence: 99%

Experimental methods for flow and aerosol measurements in human airways and their replicas

Lízal

Jedelský

Morgan

et al. 2018

European Journal of Pharmaceutical Sciences

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Section: Potential For Flow and Aerosol Measurementsmentioning

confidence: 99%

Experimental methods for flow and aerosol measurements in human airways and their replicas

Lízal

Jedelský

Morgan

et al. 2018

European Journal of Pharmaceutical Sciences

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“…Particularly in the early development of the method, the intensity of the interference signal was continuously detected by varying the length of the reference arm to obtain the backscattering light as a function of depth (time domain OCT, TD-OCT). In contrast, the interference signal can be detected in dependence on of the spectral components of the broad band light source (frequency domain OCT, FD-OCT) by a spectrometer configuration (spectral domain OCT, SD-OCT) [2][3][4] or a wavelength-swept source (swept source OCT, SS-OCT) [5,6]. With the emergence of fast line detectors and commercially available stable wavelength-tunable light sources, SD-OCT and SS-OCT became more attractive, since the entire depth information is simultaneously acquired, without any moving reference mirror.…”

Section: Introductionmentioning

confidence: 99%

Flow Measurement by Lateral Resonant Doppler Optical Coherence Tomography in the Spectral Domain

Walther

Koch

2017

Applied Sciences

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Abstract:In spectral domain optical coherence tomography (SD-OCT), any transverse motion component of a detected obliquely moving sample results in a nonlinear relationship between the Doppler phase shift and the axial sample velocity restricting phase-resolved Doppler OCT (PR-DOCT). The size of the deviation from the linear relation depends on the amount of the transverse velocity component, given by the Doppler angle, and the height of the absolute sample velocity. Especially for very small Doppler angles between the horizontal and flow direction, and high flow velocities, the detected Doppler phase shift approaches a limiting value, making an unambiguous measurement of the axial sample velocity by PR-DOCT impossible. To circumvent this limitation, we propose a new method for resonant Doppler flow quantification in spectral domain OCT, where the scanner movement velocity is matched with the transverse velocity component of the sample motion similar to a tracking shot, where the camera is moved with respect to the sample. Consequently, the influence of the transverse velocity component of the tracked moving particles on the Doppler phase shift is negligible and the linear relation between the phase shift and the axial velocity component can be considered for flow velocity calculations. The proposed method is verified using flow phantoms on the basis of 1% Intralipid solution and diluted human blood.

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Optical Coherence Tomography for NDE

Golde¹,

Kirsten²,

Schnabel³

et al. 2019

Handbook of Advanced Nondestructive Evaluation

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Visualization of dynamic boiling processes using high-speed optical coherence tomography

Cited by 6 publications

References 37 publications

Experimental methods for flow and aerosol measurements in human airways and their replicas

Experimental methods for flow and aerosol measurements in human airways and their replicas

Flow Measurement by Lateral Resonant Doppler Optical Coherence Tomography in the Spectral Domain

Optical Coherence Tomography for NDE

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