Related Experiment Video
Updated: Jun 13, 2026

Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
Published on: June 1, 2016
Effects of refraction on axisymmetric flame temperatures measured by holographic interferometry
Abstract:
Neglect of refraction can produce errors when temperature distributions in axisymmetric flames are reconstructed by Abel inversion of interferometric fringe data. This study quantifies these errors and their reduction by imaging during interferogram readout. Rays were traced through analytic temperature distributions characteristic of real flames at different equivalence ratios to determine the fringe patterns that would be observed interferometrically with and without imaging. The Abel inversion was applied to each computed fringe pattern to reconstruct the temperature distribution. Reconstructed and analytic distributions were compared to determine the error caused by using the Abel inversion. Our results indicate that proper imaging will generally be necessary to reduce reconstruction errors to below 5% in real axisymmetric flames.
Related Concept Videos
Flame Photometry: Overview
Flame Photometry: Lab
Atomic Spectroscopy: Effects of Temperature
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature from...
Atomic Emission Spectroscopy: Interference
IR Spectrometers
Influence of Earth's Curvature and Atmospheric Refraction on Leveling
