狭缝在光谱仪器中具有很大作用。在SY101型塞曼效应原子吸收分光光度计(以下简称SY101型仪器)中也是不可缺少的部分。由图1可见,SY101型仪器的光学系统可分为两部分。一部分为外光路;另一部份为内光路,即单色仪。当光线由外光路进人单色仪后,首先经过人射狭缝,由单色仪进行分光,然后经过出射 Slit plays a big role in spectroscopy. In the SY101 Zeeman effect atomic absorption spectrophotometer (hereinafter referred to as SY101-type instrument) is also an indispensable part. Can be seen from Figure 1, SY101-type optical system can be divided into two parts. Part of the outer light path; the other part of the inner light path, monochromator. When the light into the monochromator from the outer light path, first through the human shooting slit, monochromator spectroscopy, and then after the exit