Light Extinction Tomography for Measurement of Ice Crystals and Other Small Particles

Bencic, Timothy J [Inventor]Rohler, David P [Inventor]Fagan, Amy F [Inventor]Izen, Steven H [Inventor]Maniyedath, Arjun K [Inventor]

关键词: AIR FLOW;    LIGHT SOURCES;    PATENTS;    TOMOGRAPHY;   

RP-ID  :  US-Patent-10,073,023, US-Patent-Appl-SN-15/170,715

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

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.