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光密度的定义
更新时间: 2020-06-27 00:00:00  

是材料所具有的能减缓光的传播速度并产生折射(折光)效应的一种复杂的特性。为材料遮光能力的表征。它用透光镜测量,表示被检测物吸收掉的光密度,是检测方法里出现的专有名词。光密度没有量纲单位,是一个对数值,光密度是入射光与透射光比值的对数或者说是光线透过率倒数的对数。

关键词: 密度 定义

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