Development of Temperature Distribution Measurement Method Using D-LIF by Disodium Fluorescein

Abstract

This paper describes the development of the temperature-distribution measurement method by D-LIF using disodium fluorescein only. In the proposed method, the temperature was determined using the ratio of the narrowband-wavelength intensity of fluorescence of disodium fluorescein. At first, the spectrum intensity of fluorescein was obtained by the spectroscope. The result shows that using the intensity ratio of 500nm/520nm is suitable. Next, we use two monochrome cameras with the band-pass filter. The relation of ratios and temperature was similar for the result of stereoscopic. In addition, temperature resolution was discussed.