公开(公告)号：US3744918A

公开(公告)日：1973-07-10

申请号：US3744918D

申请日：1971-04-23

Applicant: AGA AB

Inventor： JACOBSSON J

IPC: G01J3/28 ,  G01J3/457 ,  G01J3/02 ,  G01J3/50

CPC classification number: G01J3/457 ,  G01J2003/2866

Abstract: Arrangement for correlation spectroscopy by means of the absorption or emission spectrum of a gas. Light from the gas is arranged to be fed to an analyzer, comprising a light transmitting disc arranged in front of a detector. One side of the disc is supplied with an interference filter which within at least one segment of the filter has transmission characteristics as a function of the wavelength within a determined range of wavelengths. The range of wavelengths corresponds to the absorption or emission spectrum of a searched ingredient in the gas. The other parts of said filter have different transmission characteristics. These parts have different transmission characteristics relative to one another and are arranged to be alternatively inserted into the beam path in front of the detector.

Abstract translation: 通过气体的吸收或发射光谱进行相关光谱的排列。 来自气体的光被布置成被馈送到分析器，包括布置在检测器前面的透光盘。 光盘的一侧被提供有干涉滤光片，其在滤光器的至少一个部分内具有作为在确定的波长范围内的波长的函数的透射特性。 波长范围对应于气体中所搜索的成分的吸收或发射光谱。 所述滤波器的其它部分具有不同的传输特性。 这些部件相对于彼此具有不同的传输特性，并且被布置成交替地插入到检测器前面的光束路径中。