公开(公告)号：US3865494A

公开(公告)日：1975-02-11

申请号：US36054373

申请日：1973-05-15

Applicant: USTAV PRO VYZKUM RUD

Inventor： PAVLICEK MIROSLAV ,  ROSENBAUM MIROSLAV

IPC: G01N21/27 ,  G01J1/36 ,  G01N21/25 ,  G01N30/74 ,  G01N21/24

CPC classification number: G01J1/36 ,  G01N21/255

Abstract: A twin beam photometer using a discharge tube, the radiating flux of which is modulated by magnetic means. The photometer selects from this modulated radiating flux two radiating beams, the distance from each other being determined by the amplitude of the radiating flux. Measuring cells are placed in the track of each radiating beam; the radiation from both radiating beams is received in a radiation detector.

Abstract translation: 使用放电管的双光束光度计，其辐射通量由磁性装置调制。 光度计从该调制的辐射通量中选择两个辐射束，彼此的距离由辐射通量的幅度决定。 测量单元被放置在每个辐射束的轨道中; 来自两个辐射束的辐射被接收在辐射检测器中。