In recent years, phosphor thermography has received increased attention as an alternative to other common temperature measurement techniques (e.g., thermocouples, pyrometry). This technique has been successfully used for surface temperature measurements on coated surfaces (e.g., turbine blades, furnace walls) and, in some cases, mixed with a reacting material. However, this technique has yet to be used for measuring the surface temperature of burning energetic materials (e.g., propellants, explosives). Adapting this technique to the study of energetic materials would enable temporally and spatially resolved surface temperature measurements that also lack some of the shortcomings of conventional methods. This work investigates the feasibility of using phosphor thermography to measure the surface temperature of burning nitrocellulose, an energetic material used extensively in single-, double-, and triple-base propellant formulations. Using phosphor thermography, two-dimensional time-resolved surface temperature measurements were obtained across the surface of a burning nitrocellulose pellet. The average surface temperatures measured with this approach ($T=534\mathrm{K}$) were in good agreement with previously published measurements for nitrocellulose obtained with embedded thermocouples ($T=523\mathrm{K}$). This work demonstrates the viability of using phosphor thermography for measuring the surface temperature of burning solid propellants as well as other types of energetic material compositions.

近年来，作为其他常见温度测量技术（例如热电偶，高温计）的替代方法，荧光粉热成像技术受到越来越多的关注。该技术已成功用于涂层表面（例如，涡轮叶片，炉壁）的表面温度测量，并在某些情况下与反应材料混合。但是，该技术尚未用于测量燃烧的高能材料（例如推进剂，炸药）的表面温度。使该技术适合于高能材料的研究将能够实现时空分辨的表面温度测量，而这些温度测量也缺少常规方法的某些缺点。这项工作研究了使用磷光热成像法测量燃烧的硝酸纤维素的表面温度的可行性，一种在单，双和三基推进剂配方中广泛使用的高能材料。使用磷光热成像，可以在燃烧的硝化纤维素颗粒表面上获得二维时间分辨的表面温度测量值。用这种方法测得的平均表面温度（$Ť=534\mathrm{ķ}$）与以前发表的嵌入式热电偶硝酸纤维素的测量结果非常吻合（$Ť=523\mathrm{ķ}$）。这项工作证明了使用磷光热成像法测量燃烧的固体推进剂以及其他类型的高能材料成分的表面温度的可行性。