公开(公告)号：US20130222789A1

公开(公告)日：2013-08-29

申请号：US13879816

申请日：2011-11-14

申请人： Shigeru Matsui ,  Shuhei Yamamura ,  Hideyuki Akiyama ,  Yoshisada Ebata

发明人： Shigeru Matsui ,  Shuhei Yamamura ,  Hideyuki Akiyama ,  Yoshisada Ebata

IPC分类号： G01J3/42

CPC分类号： G01J3/42 ,  G01J3/0218 ,  G01J3/28 ,  G01J2003/2866 ,  G01N21/05 ,  G01N21/3151

摘要： In a spectrophotometer of the single-beam type, highly stable transmission and absorption spectra can be obtained with a high SNR while drifting is suppressed and for a long time even when the amount of light from the light source is varied over time. The spectrophotometer includes: a light source; a sample cell; a polychromator that generates a transmission spectrum of a sample in the sample cell by dispersing a portion of light from the light source that has passed through the sample into a plurality of spectral components; an image sensor that detects the transmission spectrum of the sample; a light source monitoring photodetector that detects a portion of the light from the light source that has not passed through the sample cell; and an operation unit that corrects the transmission spectrum of the sample by using an output signal from the light source monitoring photodetector.

摘要翻译： 在单光束型分光光度计中，即使当来自光源的光量随时间变化时，也可以以高信噪比获得漂移时的高稳定的透射和吸收光谱。 分光光度计包括：光源; 样品池; 多色分光器，其通过将来自已经通过所述样品的光源的一部分光分散到多个光谱分量中而在所述样品池中产生样品的透射光谱; 检测样品的透射光谱的图像传感器; 光源监测光电检测器，其检测未通过样品池的来自光源的光的一部分; 以及通过使用来自光源监视光电检测器的输出信号来校正样品的透射光谱的操作单元。