Estimation And Characterization Method Of Heat Source Temperature Based On Spectral Radiation

This article describes the method of heat source temperature estimation and characterization based on spectral radiation which is a spectral data-based soft measurement technology, through the spectrum of black body radiation curve fitting in order to achieve an approximate estimate of a method of transient temperature.The project has important theoretical and practical value.To improve the measuring precision of true temperature the dissertation brings forth the new ideas and work as follows:(1) In this paper, optical telescope structure as the optical collection system, thermal radiation target radiation energy coupling into the fiber, re-entering the spectrometer and record the target spectral data, and then processed temperature values calculated by fitting estimates.(2) The solar spectrum, for example, by the method of data correction, data filtering, data fitting, to achieve the sun's temperature estimates, got a brief analysis of the deviation in temperature.(3) Using this method of laser ablation of the instantaneous high temperature flame surface were measured, while taking advantage of infrared camera for temperature measurement, and the results were analyzed in detail.