光栅扫描光谱仪参数的研究

光栅扫描光谱仪的入射光线和出射光线的方向是固定的，在光栅转动下进行分光，这与光栅不动而入射光方向改变的分光方法不同。由光栅方程出发，计算出电脑自动控制多光栅转动的光谱仪测试系统的角色散率、线色散率和分辨本领，得出光栅扫描光谱仪的角色散率、线色散率和分辨本领等参数公式。所得结果与光栅不动而入射光方向改变的光谱仪的角色散率、线色散率和分辨本领不同。这为光栅扫描光谱仪的使用和研究提供了理论依据。

Investigation into parameters of grating scanning spectrometer

The grating scanning spectrometer has incident and emergence lights with fixed directions. It works when its grating rotates. It's different from another light-splitting system in which the grating is fixed,and the direction of the incident light changes. Based on the equation of the grating,the angular dispersive power,line dispersive power and resolving power of the spectrometer testing system whose grating movement was controlled automatically by a computer were calculated theoretically. The parameter formulae of the angular dispersive power,line dispersive power and resolving power of the grating scanning spectrometers were obtained. The calculated result shows that the measurements made by the grating scanning spectrometers are different from those of the spectrometers with fixed grating.