公开(公告)号：US4678277A

公开(公告)日：1987-07-07

申请号：US655024

申请日：1984-09-26

Applicant: Michel Delhaye ,  Andre Deffontaine ,  Andre Chapput ,  Michel Bridoux ,  Edouard Da Silva

Inventor： Michel Delhaye ,  Andre Deffontaine ,  Andre Chapput ,  Michel Bridoux ,  Edouard Da Silva

IPC: G01J3/44 ,  G01N21/65

CPC classification number: G01J3/44 ,  G01N21/65

Abstract: The invention relates to a method of discrimination in spectrometry, particularly of eliminating phenomena of fluorescence in Raman spectrometry. According to the invention, a sample (6) is excited by a luminous pulse (5) generated from a laser (1). The light (7) emitted by the sample (6) is directed into an interferometer (8) of which the duration of a round trip of a luminous ray is significantly longer than the duration of the pulse of the incident wave and shorter than the duration of the phenomenon of fluorescence. The resulting light (9) is then directed to a second interferometer (10) of which the optical path is slightly different from that of the preceding interferometer (8). The light (11) is recovered at the outlet of the second interferometer (10) and this wave is analyzed by means of a spectrometer (12). The invention is applicable particularly to the analyzing of samples in the chemical industry.

Abstract translation: 本发明涉及一种在光谱测定中的鉴别方法，特别是在拉曼光谱测定中消除荧光现象。 根据本发明，由激光器（1）产生的发光脉冲（5）激发样品（6）。 由样品（6）发射的光（7）被引导到干涉仪（8）中，其中光线的往返持续时间明显长于入射波的脉冲的持续时间并且短于持续时间 的荧光现象。 所得到的光（9）然后被引导到第二干涉仪（10），其中光路与前一个干涉仪（8）的光路略微不同。 在第二干涉仪（10）的出口处回收光（11），并通过光谱仪（12）分析该波。 本发明特别适用于分析化学工业中的样品。