Surface temperature of explosive fireball is vital for the evaluation of the thermal damage ability. In order to improve the spatial and temporal resolution of the measurement, based on the thermal radiation law, the principle and limitation of the equipments used to measure the surface temperature of explosive fireball are analyzed, such as infrared thermography camera, photoelectric pyrometer etc. Based on CMOS image sensor and its built-in filter array, a temperature measurement method based on visible band is proposed to realize the imaging measurement of the surface temperature of explosive fireball. An experimental verification was carried out by using infrared thermography camera and a high-speed camera based pyrometer, the experimental results show that there are differences in the shape of fireball measured by different temperature measuring systems, the reason of the result is analyzed. The research has laid a foundation for the construction of infrared and visible band combined temperature measuring system.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.