Investigation of Optical Coherence Tomography Imaging in Nylon 12 Powder
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Date
2017
Authors
Lewis, Adam
Katta, Nitesh
McElroy, Austin
Milner, Thomas
Fish, Scott
Beaman, Joseph
Journal Title
Journal ISSN
Volume Title
Publisher
University of Texas at Austin
Abstract
Optical Coherence Tomography (OCT) has shown promise as a new process sensor in selective laser sintering (SLS) which can yield depth resolved data not attainable with conventional sensors. However, OCT images of nylon 12 SLS parts and powder contain artifacts, which have not been previously investigated in literature. These artifacts along with the highly scattering nature of the SLS parts and powder limit the imaging depth, which decreases the usefulness of OCT imaging. This study seeks to study the causes of the imaging artifacts and proposes and investigates methods to improve OCT imaging depth in nylon 12 powder.