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由计算机控制一种自动系统正投入使用,它可以在任意个点扫描整流罩和确定以整流罩轴线成0度到60度角范围内的前散射和透射系数。在3.39微米处,对新、旧整流罩、人工腐蚀的整流罩以及尖晶石块作过测量。尖晶石可以代替现在用的氟化镁作红外整流罩材料。总共测量了十八个新的,一个旧的和两个人工腐蚀的整流罩。数据指出:(1)旧罩和新罩的散射和透射系数与整流罩轴线夹角的变化差不多是相同的。(2)旧罩的散射系数比十八个新罩中的十六个的散射系数高一些,但是比其余两个低些(比所有新整流罩的散射平均数高26％),和(3)锻压的单晶尖晶石样品的散射要比新整流罩的平均值小五倍,而熔铸的多晶尖晶石样品的散射要比平均数大2.5倍。
Computer-controlled An automatic system is in operation that scans the fairing at any point and determines the forward scatter and transmission coefficients in the range of 0 degrees to 60 degrees from the fairing’s axis. At 3.39 microns, new and old fairings, man-made corrosion fairings and spinel pieces were measured. Spinel can replace the current use of magnesium fluoride as a fairing material. In total, eighteen new, one old and two manually eroded fairings were measured. The data states: (1) The scattering and transmission coefficients of the old and new shrouds are almost the same as the changes in the included angle of the shrouds. (2) The scattering coefficient of the old shroud is higher than the scattering coefficient of the sixteen of the eighteen new shrouds but lower than the remaining two (26% higher than the average scattering of all new shrouds) and (3 ) Forged single crystal spinel samples scatter five times less than the average of the new fairing while the fused polycrystalline spinel samples scatter about 2.5 times more than the average.