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1.前言地球物理研究所为气晖研究所置备之强光光谱仪СП-48、СП-49之色散为100A/mm,分辨率为1—2(?),光谱照片的大小只有15×3mm.在进行光谱分析工作中,量度光谱照片的光谱线黑度与利用阶梯减光板作摄影底片特性曲线时,光度计需用十分窄与短之狭缝,我们原有的蔡司测微光度计的灵敏度较低,不能适合我们的要求.在底片曝光过度与灰雾过大时,黑度量度更为困难.
1. Introduction The Institute of Geophysics Institute of ChronoCurber has developed a spectrograph СП-48 and СП-49 with a dispersion of 100 A / mm and a resolution of 1-2 (?). Spectral photos are only 15 x 3 mm in size. Spectral analysis in the work to measure the spectrum of the black line spectral photos and the use of step reduction panels for photographic film characteristics curve, the photometer needs to be very narrow and short slit, our original Zeiss micrometer photometer sensitivity Lower, can not meet our requirements in the negative film over exposure and fog is too large, blackness is more difficult to measure.