公开(公告)号：US3769516A

公开(公告)日：1973-10-30

申请号：US3769516D

申请日：1972-12-04

Applicant: PERKIN ELMER CORP

Inventor： MARKLE D ,  SCHLESINGER E

IPC: G01J3/02 ,  G01J3/08 ,  G01J3/44 ,  G01N21/64 ,  G01J3/00

CPC classification number: G01J3/02 ,  G01J3/0232 ,  G01J3/0291 ,  G01J3/08 ,  G01J3/4406 ,  G01N21/64 ,  G01N2021/6426 ,  G01N2201/0616

Abstract: A fluorescence radiation detector of the Fraunhofer line discriminator type. A sky telescope and an earth telescope each form radiation beams which are directed to a single optical chopper. The chopper sequentially directs each beam through a single Fabry-Perot filter centered at the Fraunhofer line and a single neutral density filter. The chopped segments are recombined to form a beam containing A, B, C, and D portions in time sequence where: A the direct solar intensity within the continuum; B the direct solar intensity inside the selected Fraunhofer line; C the reflected solar intensity inside the selected Fraunhofer line; and D the reflected solar intensity in the continuum. A single photomultiplier tube with a blocking filter in front receives the beam and produces corresponding sequential electrical pulses which are electronically processed to yield fluorescence (p) from the equation

Abstract translation: Fraunhofer线鉴别器类型的荧光辐射检测器。 天空望远镜和地球望远镜均形成指向单个光斩波器的辐射束。 斩波器顺序地引导每个光束穿过以弗劳恩霍夫线为中心的单个法布里 - 珀罗滤光片和单个中性密度滤光片。 将切碎的片段重新组合以形成包含A，B，C和D部分的束，其中：