Infrared system for methanol droplet temperature measurement

Leonard Nana; Jean A. Farre; Andre Giovannini; Nicolas Naudin

doi:10.1117/12.141975

6 April 1993 Infrared system for methanol droplet temperature measurement

Leonard Nana, Jean A. Farre, Andre Giovannini, Nicolas Naudin

Proceedings Volume 1933, Thermosense XV: An International Conference on Thermal Sensing and Imaging Diagnostic Applications; (1993) https://doi.org/10.1117/12.141975
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Our objective is the development of an infrared system which is able to measure the temperature of a droplet, in order to validate theoretical kinetics models of heating and vaporization. A mathematical model has been derived to compute the performance in terms of sensitivity (signal-noise ratio) of an experimental system that measures the temperature of a methanol droplet using IR thermography. Based on that simulation, an experimental system working in the long wavelength range [8 - 12 micrometers ], has been built and characterized in terms of temperature calibration, and in terms of space and temperature resolutions. Then the system has been used to measure the temperature of a fixed methanol evaporating droplet. Finally, we propose a technique to track a moving droplet injected in a aerothermodynamic facility and simultaneously to measure its temperature and eventually its diameter along the trajectory.

Citation Download Citation

Leonard Nana, Jean A. Farre, Andre Giovannini, and Nicolas Naudin "Infrared system for methanol droplet temperature measurement", Proc. SPIE 1933, Thermosense XV: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (6 April 1993); https://doi.org/10.1117/12.141975

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