Planar laser-induced phosphorescence (PLIP) has been used for the temperature measurement of suspended phosphor aggregates. Two-dimensional surface temperature of fluidized phosphor aggregates was measured through a pair of spatial and wavelength resolved images in an environment where phosphors are heated by high-flux radiation. The heating was supplied by a multi-diode laser system which provides a well-characterized high-flux radiation up to 28.87 MW/m². Phosphors made of BaMgAl₁₀O₁₇:Eu (BAM) were selected as the material and suspended in a fluidized bed. Single-shot temperature imaging of BAM aggregates were inferred and compared at several heat fluxes. With the increasing heat flux up to 28.87 MW/m², the BAM aggregates were found to exhibit a wider range of temperature distribution, and the maximum average aggregate temperature achieved 723 K, while the maximum temperature of a single aggregate could reach up to 1063 K. The wider temperature distributions that observed under higher radiation fluxes were caused by the elevated temperature of cooling air and the non-uniform aggregate surfaces. This non-intrusive method of measuring temperature offers advantages over other available methods in the study of heat transfer processes involving high-temperature reactions.

平面激光诱导磷光（PLIP）已用于悬浮磷光体聚集体的温度测量。在一对荧光粉被高通量辐射加热的环境中，通过一对空间和波长分辨图像测量了流化荧光粉聚集体的二维表面温度。加热是由多二极管激光系统提供的，该系统提供了高达28.87 MW / m ²的充分表征的高通量辐射。选择由BaMgAl ₁₀ O ₁₇：Eu（BAM）制成的荧光粉作为材料，并将其悬浮在流化床中。推断了BAM聚集体的单次温度成像，并在多个热通量下进行了比较。随着热通量的增加，最高可达28.87 MW / m ²，发现BAM骨料的温度分布范围更广，最大平均骨料温度达到723 K，而单个骨料的最高温度可以达到1063K。在较高辐射通量下观察到的温度分布更宽是由于冷却空气温度升高和聚集体表面不均匀所致。在涉及高温反应的传热过程的研究中，这种非侵入式的温度测量方法具有优于其他可用方法的优势。