Radiance Measurements Of Flames In High Windspeeds Using A Thermal Imaging Radiometer

J. M. Garneau; J. L. Halpin

doi:10.1117/12.940519

11 May 1987 Radiance Measurements Of Flames In High Windspeeds Using A Thermal Imaging Radiometer

J. M. Garneau, J. L. Halpin

Proceedings Volume 0780, Thermosense IX: Thermal Infrared Sensing for Diagnostics and Control; (1987) https://doi.org/10.1117/12.940519
Event: 1987 Technical Symposium Southeast on Optics, Electro-Optics, and Sensors, 1987, Orlando, FL, United States

Abstract

Pyrophoric fuels are under investigation at Defence Research Establishment, Valcartier, Quebec, Canada as new infrared (IR) emission sources. A thermal imaging radiometer (TIR) is used to obtain radiance values in the 3- to 5-μm spectral region. Pyrophoric/air flames are generated under windspeeds varying from Mach 0.3 to Mach 0.9. The infrared images recorded on tape during trials are analysed in the laboratory with the use of an 8-bit image processing system. False color enhancement can be provided for high-radiant intensity regions of the flames. The raw images show flame edges that are not well defined. In order to improve accuracy on the determination of flame area, multi-frame images are used. Procedures for image acquisition, calibration and treatment will be discussed in this presentation.

Citation Download Citation

J. M. Garneau and J. L. Halpin "Radiance Measurements Of Flames In High Windspeeds Using A Thermal Imaging Radiometer", Proc. SPIE 0780, Thermosense IX: Thermal Infrared Sensing for Diagnostics and Control, (11 May 1987); https://doi.org/10.1117/12.940519

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