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Contribution à la métrologie des feux de forêts : couplage de données thermiques et de données optiques

Abstract : The main purpose of this thesis is to design a sensor for forest fire metrology. This sensor measures the radiative heat flux emitted by the flame because it is the only global accessible. The thin flame model associated provides useful information (volume heat flux, forward and backward fire front positions, flame length). This sensor has been designed to calibrate and validate a fire propagation model presented in chapter 1. Nevertheless, the calibration process requires the minimization of the gap between the measured and the computed heat flux, so fire front positions are involved which leads to add a lot of parameters to the objective function. My work was to solve this problem by incorporating optical measurements. Optical data obtained through a visual camera allow to extract fire front positions. The sensor developed in this work is unique and is the unit of a sensor network for forest fire metrology.
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Steve Rudz. Contribution à la métrologie des feux de forêts : couplage de données thermiques et de données optiques. Autre. Institut National Polytechnique de Lorraine, 2011. Français. ⟨NNT : 2011INPL056N⟩. ⟨tel-01749546⟩

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