5 March 2015 Measurement of total velocity components of particle flow with optical coherence tomography
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Abstract
We demonstrate a method for measuring the total velocity components of particle flow using optical coherence tomography. When passing through a probe volume, moving particles cause the intensity variation of backscattered light. The intensity signal contains the velocity information about the particle flow. Such variation is separated into a phase modulation and an amplitude modulation, from which the axial and transverse components of velocity are obtained. The proposed method is experimentally verified using polystyrene particle suspension flow.
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Hongxian Zhou, Zhenhe Ma, Yi Wang, "Measurement of total velocity components of particle flow with optical coherence tomography", Proc. SPIE 9322, Dynamics and Fluctuations in Biomedical Photonics XII, 93220Y (5 March 2015); doi: 10.1117/12.2077070; https://doi.org/10.1117/12.2077070
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