Abstract
This report studies absolute estimation of both the direction and magnitude of flow velocity, at microscopic scale, with acoustic resolution photoacoustic microscopy. Fundamentally, it is based on the quantitative measurement of Doppler frequency shift in the short laser pulse induced photoacoustic (ultrasound) signals. Experiments were carried out in a transparent plastic tube through which light absorbing liquid solution (as imaging target) flows. We investigated various cases of flow velocity: (i) variation in direction (0°–90°) and (ii) variation in magnitude (0.5–5 mm/s). This study demonstrates simultaneous recovery of both direction and magnitude from a set of data noninvasively and nondestructively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
