【作者】 陈思； 柯福顺； 乐永康；

【Author】 CHEN Si,KE Fu-shun,LE Yong-kang (Physics Teaching Lab,Fudan University,Shanghai 200433,China)

【机构】 复旦大学物理教学实验中心；

【摘要】 光栅光谱仪在科研、教学、生产中的应用非常广泛,测量结果中波长和光强的确定与很多因素有关,光谱仪使用前需要进行定标。本文以上PG4000微型光栅光谱仪为例,完整地给出了光栅光谱仪的标定过程:包括高阶衍射峰的消除、波长标定和光强标定三部分内容。根据标定结果测量辉光放电氩气等离子体的发射光谱,测量结果与文献中的参考谱符合很好。更多还原

【Abstract】 Grating spectrometers have wide application in the fields of scientific research, teaching and industry.Wavelength and intensity of a spectrum depends on several factors.A spectrometer should be calibrated before it could be put into application.We report here an complete calibration of PG4000 portable Spectrometer,including suppression of higher order diffraction,wavelength calibration and intensity calibration.Based on the obtained results, emission spectrum of an Argon glow plasma was measure,which agreed well with the reported spectrum found on NIST.更多还原