The Relation of the Temperature and Color of the Flame of the CCD Temperature Measurement

This paper introduces the principle of temperature measurement of color CCD and two-color thermometry. Experiment scheme of the temperature measurement is designed. The CCD high-speed camera, thermoelectric couple of K type and Bunsen burner are utilized to measure the temperature of the surface of the diffusion flame. The results show that the gray levels of red component and the green component is both rise, while the increase tendency of the red component is more obvious. Besides, the correction factor K, given in the equation of the temperature measurement, is decreased. The temperature is also measured by two-color thermometry and the difference of the value measured by two different methods is less than 20 K.