Detecting heat capacity changes due to surface inconsistencies using high absorbance spectral regions in the mid-ir

Methods and systems for detecting the presence of an inconsistency in or on a surface are generally provided. The method can include directing a modulated light beam (e.g., having a wavelength of about 3 mum to about 20 mum) from a light source to a mirror. The mirror then directs a reflected light...

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Hauptverfasser: Stephen L Morgan, Heather Brooke, Michael L Myrick, Jessica N McCutcheon, Megan B Pearl
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creator Stephen L Morgan
Heather Brooke
Michael L Myrick
Jessica N McCutcheon
Megan B Pearl
description Methods and systems for detecting the presence of an inconsistency in or on a surface are generally provided. The method can include directing a modulated light beam (e.g., having a wavelength of about 3 mum to about 20 mum) from a light source to a mirror. The mirror then directs a reflected light beam onto the surface (e.g., directly onto the surface or indirectly onto the surface via a additional mirror(s)). The mirror is controlled to scan the reflected light beam across the surface. A specular reflection from the surface can then be detected in each light cycle, and the presence of the inconsistency on the surface can be detected.
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Detecting heat capacity changes due to surface inconsistencies using high absorbance spectral regions in the mid-ir
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