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Analysis of four-dimensional Mie imaging using fiber-based endoscopes

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Abstract

This work reports the demonstration and analysis of four-dimensional (4D) imaging measurements in two-phase flows using fiber-based endoscopes (FBEs). Such 4D measurements resolve the droplet distribution in two-phase flows in all three spatial directions and with a temporal resolution of up to 5 kHz. Demonstration measurements were performed in a measurement volume of 85mm×85mm×85mm discretized into 64×64×64 voxels to illustrate FBEs’ potential for facilitating practical implementation of 4D tomographic measurements. Mathematical analyses were performed to quantify the fundamental advantage of FBEs to enhance the reconstruction fidelity.

© 2014 Optical Society of America

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