Optical density measurements in a multiphase cryogenic fluid flow system

Valentin Korman; John Wiley; Don A. Gregory

doi:10.1117/12.665566

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10 May 2006 Optical density measurements in a multiphase cryogenic fluid flow system

Valentin Korman; John Wiley; Don A. Gregory

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Proceedings Volume 6222, Sensors for Propulsion Measurement Applications; 622208 (2006) https://doi.org/10.1117/12.665566
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

An accurate determination of fluid flow in a cryogenic propulsion environment is difficult under the best of circumstances. The extreme thermal environment increases the mechanical constraints, and variable density conditions create havoc with traditional flow measurement schemes. Presented here are secondary results of cryogenic testing of an all-optical sensor capable of a mass flow measurement by directly interrogating the fluid's density state and a determination of the fluid's velocity. The sensor's measurement basis does not rely on any inherent assumptions as to the state of the fluid flow (density or otherwise). The fluid sensing interaction model will be discussed. Current test and evaluation data and future development work will be presented.

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Valentin Korman, John Wiley, and Don A. Gregory "Optical density measurements in a multiphase cryogenic fluid flow system", Proc. SPIE 6222, Sensors for Propulsion Measurement Applications, 622208 (10 May 2006); https://doi.org/10.1117/12.665566

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