The two-dimensional multi-angle light scattering (2D-MALS) technique has been extended for single-shot size measurements of soot aggregates in flames. Six cameras are used for instantaneous acquisition of the elastic scattering from the aggregates at different directions between 10 to 90\(^\circ\) of a laser light sheet. Two diluted ethylene (50 and 60% by volume of \(\hbox {C}_2\hbox {H}_4\) fuel diluted with inert \(\hbox {N}_2\)) coflow laminar diffusion flames with little flickering are used as proof of concept. Results of instantaneous, average and fluctuating 2D fields of the effective radii of gyration, which are expected to characterize the size of the aggregates, compare well with the literature, demonstrating the applicability of the proposed sizing method to weakly unsteady combustion processes.

二维多角度光散射（2D-MALS）技术已扩展到火焰中烟尘聚集体的单次尺寸测量。六个相机用于从聚集体的激光片的10到90圆周之间的不同方向上瞬时采集弹性散射。用惰性\（\ hbox {N} _2 \）稀释的两种稀释的乙烯（50％和60％体积的\（\ hbox {C} _2 \ hbox {H} _4 \）燃料）带有少量闪烁的同流层流扩散火焰用作概念证明。有效回转半径的瞬时，平均和波动2D场的结果有望表征骨料的大小，与文献进行了比较，证明了所提出的施胶方法适用于微弱的不稳定燃烧过程。