Experimental study on transient high temperature measurement in explosive field

In order to meet the demands of transient high temperature measurement in explosive field, an infrared colorimetric temperature measurement system was established based on the theory of light radiation. The experiments with a blackbody furnace were carried out to calibrate the working parameters of the Si/Ge colorimetric pyrometer including wavelength, bandwidth, and photoelectric conversion coefficient, measurement range. And the upper limit of the colorimetric pyrometer reached 3500 ℃. The response time of the colorimetric pyrometer was not more than 10 μs, which was determined by calibration experiments using spark discharge. The temperature formulas were given for the standard and transfinite pyrometers. And the colorimetric pyrometer was applied to measure the real temperatures in TNT and FAE explosive fields. The outstanding features of the colorimetric pyrometer in the engineering applications indicate that the colorimetric pyrometer can be used to diagnose explosion processes and evaluate heat radiation damage effects.