Two-Color Imaging Radiometry For Pyrotechnic Diagnostics

John Brownson; Kathleen Gronokowski; Edward Meade

doi:10.1117/12.940516

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11 May 1987 Two-Color Imaging Radiometry For Pyrotechnic Diagnostics

John Brownson; Kathleen Gronokowski; Edward Meade

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Proceedings Volume 0780, Thermosense IX: Thermal Infrared Sensing for Diagnostics and Control; (1987) https://doi.org/10.1117/12.940516
Event: 1987 Technical Symposium Southeast on Optics, Electro-Optics, and Sensors, 1987, Orlando, FL, United States

Abstract

Two-color radiometry is a well-known technique for temperature measurement and is routinely used in such applications as astronomy and photography. We have applied the technique in some new ways for determination of the ensemble graybody temperature and the matter distribution in plumes of solid products of pyrotechnic reactions in vacuum. Each resolution element of interest is measured simultaneously in time and space at two different wavelengths and the desired results derived. A commercially available two-color imaging radiometer provides sufficient resolution in the temporal, spectral, and spatial domains for our application. We measure to useful accuracy temperature in the 400°C to 1200°C range and ensemble emissivities ranging from 10-1 to 10-4 in plumes produced pyrotechnically. Optical bandpass changes in the sensor, special calibrations, and special computer codes to achieve these results are described.

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John Brownson, Kathleen Gronokowski, and Edward Meade "Two-Color Imaging Radiometry For Pyrotechnic Diagnostics", Proc. SPIE 0780, Thermosense IX: Thermal Infrared Sensing for Diagnostics and Control, (11 May 1987); https://doi.org/10.1117/12.940516

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