LIGHT EXTINCTION TOMOGRAPHY FOR MEASUREMENT OF ICE CRYSTALS AND OTHER SMALL PARTICLES
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United States of America Patent
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Issued Date -
Aug 8, 2024
app pub date -
Apr 15, 2024
filing date -
Jun 25, 2014
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Abstract
A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct. Imaging is accomplished via star-shaped source and detector arrays.
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