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Coherent Laser Ranging of Deforming Objects in Fires at Sub-Millimeter Precision

Published

Author(s)

Matthew Hoehler, Artur A. Chernovsky, Matthew Bundy, Esther Baumann

Abstract

This paper applies coherent Frequency Modulated Continuous Wave Light Detection and Ranging to capture three-dimensional measurements of objects in fire at meters of stand-off distance. Despite the presence of flame depths up to 1.5 m obscuring the target, measurements with millimeter precision are obtained. An approach to achieve sub-millimeter precision using spatial and temporal averaging during post-processing is presented. The technology is demonstrated in case studies of structural connection and vegetation response in fires.
Citation
Fire Safety Journal
Volume
140

Keywords

laser ranging, three-dimensional image acquisition, structural response, wildfires, thermal deformation

Citation

Hoehler, M. , Chernovsky, A. , Bundy, M. and Baumann, E. (2023), Coherent Laser Ranging of Deforming Objects in Fires at Sub-Millimeter Precision, Fire Safety Journal, [online], https://doi.org/10.1016/j.firesaf.2023.103864, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936329 (Accessed May 28, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created July 7, 2023, Updated August 24, 2023