spectral slit width

The influence of spectral slit width was studied.

考察了光谱狭缝宽度的影响.

The accuracy in spectral measurement, for instance, photometric accuracy ( transmittance or reflectance), wavelength abscissa accuracy and spectral resolution, is usually influenced by spectral instrument factors, such as slit width, scan speed and response time.

光谱仪器测试参数，如狭缝宽度、扫描速度和响应时间等对光谱测试精度例如测光精度（透过率或反射率）、波长精度和光谱分辨率等有很大的影响。

Secondly, the spectral resolution and its affecting factors were analyzed, and the mercury lamp spectrum was the instrument function of different spectral resolution, in different slit width but equal import and export slit.

其次，分析了光谱分辨率及其影响因素，并选取不同狭缝宽度下，且进、出口狭缝相等的汞灯谱来作为不同分辨率下光谱仪的仪器函数。