公开(公告)号：WO1989001622A1

公开(公告)日：1989-02-23

申请号：PCT/US1988002688

申请日：1988-08-08

Applicant: D.O.M. ASSOCIATES, INC.

Inventor： D.O.M. ASSOCIATES, INC. ,  FATELEY, William, G. ,  TILOTTA, David, C.

IPC: G01N21/65

CPC classification number: G01J3/2846 ,  G01J3/0229 ,  G01J3/44 ,  G01J2003/1269 ,  G01J2003/285 ,  G02F1/1313

Abstract: A Raman spectrometer device is provided which provides useful spectral information in situations where Raman spectroscopy has heretofore been unworkable. The spectrometer (100) makes use of a stationary electrooptical masking device (120) in lieu of conventional slit scanning optics, with the mask (120) being computer controlled to provide a multiplexing function, typically employing Hadamard mathematics. The stationary encoding mask permits use of a relatively inexpensive photodiode detector, as compared with photomultiplier tubes conventionally used in Raman instrumentation. Advantageously, unwanted Rayleigh scattered radiation can be completely eliminated, either by blanking those zones of the mask (120) receiving such radiation, or physically locating the device in such orientation that the Rayleigh scattered radiation does not pass through operative portions of the mask (120).

Abstract translation: 提供拉曼光谱仪装置，其在拉曼光谱迄今为止不能工作的情况下提供有用的光谱信息。 光谱仪（100）利用固定的电光掩模装置（120）来代替传统的狭缝扫描光学器件，其中掩模（120）被计算机控制以提供通常采用Hadamard数学的复用功能。 与常规用于拉曼仪器的光电倍增管相比，固定编码掩模允许使用相对便宜的光电二极管检测器。 有利地，可以通过对接收这种辐射的掩模（120）的那些区域进行消隐，或者将该器件物理地定位成使得瑞利散射辐射不通过掩模（120）的操作部分的方向，可以完全消除不需要的瑞利散射辐射 ）。