公开(公告)号：US3817634A

公开(公告)日：1974-06-18

申请号：US23040672

申请日：1972-02-29

Applicant: NAT RES DEV

Inventor： BARRON L ,  BUCKINGHAM A

IPC: G01J4/04 ,  G01N21/21 ,  G01N21/65 ,  G01J3/44

CPC classification number: G01N21/21 ,  G01J4/04 ,  G01N21/65 ,  G01N2021/4792

Abstract: In testing a sample of an optically active substance, the sample is irradiated with polarized electromagnetic radiation and the intensity of radiation scattered from the sample in a given direction is detected. The state of polarization of the incident radiation from which the detected radiation is derived is modulated, preferably by alternating it between right and left circular polarization, to cause a periodic variation of the detected intensity, and a signal related to this variation is derived.

Abstract translation: 在测试光学活性物质的样品时，用极化电磁辐射照射样品，并且检测从给定方向上从样品散射的辐射强度。 检测出的辐射源的入射辐射的偏振状态优选地通过在右和左圆极化之间进行交替调制，以引起检测强度的周期性变化，导出与该变化有关的信号。