Analysis of Industry-Related Flows by Optical Coherence Tomography—A Review

作者:Koponen, Antti I.;Haavisto, Sanna 刊名:KONA Powder and Particle Journal 上传者:周海涛

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Advance Publication by J-STAGE Published online 17 November 2018 KONA Powder and Particle Journal /Doi:10.14356/kona.2020003 Review Paper 1 Copyright © 2018 The Authors. Published by Hosokawa Powder Technology Foundation. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Analysis of Industry-Related Flows by Optical Coherence Tomography—A Review † Antti I. Koponen 1* and Sanna Haavisto 2 1 VTT Technical Research Centre of Finland Ltd., Finland 2 Spinnova Ltd., Finland Abstract Optical Coherence Tomography (OCT) is a light-based imaging method capable of simultaneously capturing the internal structure and motion (1D, 2D or 3D) of various opaque and turbid materials with a micron-level spatial resolution. Depending on the OCT technology, axial scanning rates can vary in a range of tens to hundreds of kHz. The actual imaging depth significantly depends on the optical properties of the material and can vary from micrometers to a few millimeters. From the viewpoint of industrial applications, OCT technology is very appealing. Due to its resolution, speed, and ability to deal with opaque materials, it fills an apparent gap in available measurement methods. Nonetheless, OCT has not to date seen widespread growth in the industrial field. This has been at least partly due to a lack of commercial devices compact and flexible enough to adapt to industrial needs. The recent emergence of more generic commercial OCT devices has considerab

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