一、概述冷阴极氪光谱放电灯是主要的光谱光源之一,它用于光波干涉仪上作为单色光源,也可用于各种光谱仪和分光仪上。由于氪能被激发出数条半宽度较小的亮线光谱,它又是一种惰性气体,化学性较稳定,充入放电管内较容易,激发时无须加入运载用的辅助气体,故其光谱成分和波长数值不受辅助气体的影响。把氪灯做成冷阴极放电灯形式,可消除热影响,使激发出的光谱线波长较稳定,单色性也较好。所以在长度计量上,冷阴 First, an overview Cold cathode KR spectrum discharge lamp is one of the main spectral light source, which is used as a monochromatic light source on a light wave interferometer, can also be used on a variety of spectrometers and spectrometers. As krypton can be excited out of a number of half-width of the bright line spectrum, it is an inert gas, chemical stability, charge into the discharge tube easier, excitation without the need to join the carrier gas, so the spectrum Composition and wavelength values ​​are unaffected by assist gas. The krypton lamp made of cold cathode discharge lamp in the form of heat can eliminate the impact of the excitation of the spectral line wavelength is more stable, monochromatic is better. Therefore, the length of measurement, cold yin