光栅光谱仪狭缝宽度对谱线图样影响的研究

Grating Spectrometer Study on Influence of Slit Width for Line Drawings

通过对光栅光谱仪入射狭缝宽度的调节,观察屏幕上谱线,分析波长的分布,研究入射狭缝宽度对谱线图样的影响。分析了入射狭缝与谱线图样之间的关系,表明谱线图样中峰的数量和光的种类数跟入射狭缝宽度成正比关系,这对波长的精确测定有着很大的影响。

By adjusting the width of the entrance slit of grating spectrometer, observe the Spedtrum line on the screen, analyse the distribution of the wavelength and study how the width of the entrance slit influence the Spectrum line drawing.By analyzing the relationship between the entrance slit and the Spectrum line drawing ,finding that the quantity of the Middle Peak of the Spectrum line drawing is in proportion to the width of the entrance slit .This has much to do with the accurate measurement of the wavelength.