公开(公告)号：US4755054A

公开(公告)日：1988-07-05

申请号：US861413

申请日：1986-05-07

申请人： Mark B. Ferree

发明人： Mark B. Ferree

IPC分类号： G01J3/02 ,  G01J3/12 ,  G01J3/51 ,  G01N21/25 ,  G01N21/47 ,  G02B6/26 ,  G02B26/02

CPC分类号： G01J3/42 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0213 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0256 ,  G01N21/255 ,  G01N21/474 ,  G02B26/02 ,  G02B6/264 ,  G01J2001/4242 ,  G01J2003/1226 ,  G01J2003/2866 ,  G01N2021/4709 ,  G01N2021/4742 ,  G01N2201/0233 ,  G01N2201/084

摘要： An optical-fiber-based spectrometer utilizes a compact, P-C-board-mountable optical multiplexer which permits multiple channels of reference and measurement data from remote and hostile environments to be analyzed in rapid sequence utilizing synchronized computer data-storage and comparison to give rapid-fire answers to the question of the presence or absence of species of interest in a sample or process being analyzed, the relative light level in the reference and data channels being balanced by an optical attenuator having only an air path, attenuation being effected by controlled misalignment of optical fiber ends.

摘要翻译： 基于光纤的光谱仪使用紧凑的PC板安装光复用器，其允许使用同步的计算机数据存储和比较来快速分析来自远程和敌对环境的多个参考信道和测量数据， 对被分析的样品或过程中存在或不存在感兴趣物质的问题进行回答，参考和数据通道中的相对光级由仅具有空气路径的光衰减器平衡，衰减由受控的未对准 的光纤端。