As a means of increasing the temperature range of high-precision measurements for aerosol phosphor thermometry (APT), the co-doped Ce,Pr:LuAG phosphor was investigated for use with simultaneous Pr³⁺-scattering-referenced APT (SRAPT), Ce³⁺-SRAPT, and co-doped APT techniques. Phosphor characterization was performed in a heated air jet at atmospheric pressure, and APT performance was estimated for the three simultaneous imaging techniques. A method for combining temperature measurements using a weighted average approach is discussed in detail and demonstrated via heated air jet imaging experiments. The combination of techniques results in a usable temperature range for the Ce,Pr:LuAG phosphor of 300 to at least 900 K, with better than 35 K estimated temperature precision from 500 to 900 K at a seeding density of 120 mm^-3, improving diagnostic precision and temperature range over that of any single APT technique using the Ce,Pr:LuAG phosphor. The combination of SRAPT and co-doped measurements may improve the temperature range and performance of other similar phosphors as well.

作为增加气溶胶磷光体测温 (APT) 高精度测量温度范围的一种手段，研究了共掺杂 Ce,Pr:LuAG 磷光体与同步 Pr ³⁺ -散射参考 APT (SRAPT), Ce ³⁺-SRAPT 和共掺杂 APT 技术。磷光体表征是在大气压下的热空气射流中进行的，并且对三种同时成像技术的 APT 性能进行了评估。详细讨论了使用加权平均方法结合温度测量的方法，并通过热空气喷射成像实验进行了演示。技术的组合导致 Ce,Pr:LuAG 荧光粉的可用温度范围为 300 至至少 900 K，在 120 mm ^-3的接种密度下，估计温度精度为 500 至 900 K，优于 35 K，使用 Ce,Pr:LuAG 荧光粉提高诊断精度和温度范围，超过任何单一 APT 技术。SRAPT 和共掺杂测量的组合也可以改善其他类似磷光体的温度范围和性能。