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狭缝的定义

2019-09-20

   

  狭缝是指光谱仪的主要部件之一。狭缝是一条宽度可调、狭窄细长的缝孔。有固定狭缝,单边可调的非对称式狭缝和双边可调的对称狭缝。

  光辐射经光谱仪色散分光后的每条谱线,都是入射狭缝的像。进入单色器或从单色器出射的辐射能量,均由狭缝宽度调节。现代光谱仪中狭缝与光栅的转动耦合在一起,可自动调节。狭缝宽度的单位为μm,最大宽度为2mm。摄谱仪仅有入射狭缝,单色仪有入射、出射两个狭缝,多色仪有数个出射狭缝。

  更多有关狭缝等相关信息,请关注苏州创阔 http://www.ckmeatl.com

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