公开(公告)号：EP0625702B1

公开(公告)日：1999-10-06

申请号：EP94303495.9

申请日：1994-05-16

Applicant: THE FOXBORO COMPANY

Inventor： Day, Stephen ,  Swarna, Kailash

IPC: G01N21/35

CPC classification number: G01J3/28 ,  G01J2003/1234 ,  G01J2003/2833 ,  G01J2003/2866 ,  G01N21/3504

公开(公告)号：EP0625702A1

公开(公告)日：1994-11-23

申请号：EP94303495.9

申请日：1994-05-16

Applicant: THE FOXBORO COMPANY

Inventor： Day, Stephen ,  Swarna, Kailash

IPC: G01N21/35

CPC classification number: G01J3/28 ,  G01J2003/1234 ,  G01J2003/2833 ,  G01J2003/2866 ,  G01N21/3504

Abstract: A method and apparatus are described for identifying an unknown gas. An infrared spectrum of the unknown gas is generated. The described embodiment uses an infrared spectrophotometer that includes a circular variable interference filter. The infrared spectrum of the unknown gas is compressed, and compared with a library of compressed infrared spectra of reference compounds.

Abstract translation: 描述了用于识别未知气体的方法和装置。 产生未知气体的红外光谱。 所描述的实施例使用包括圆形可变干涉滤光器的红外分光光度计。 未知气体的红外光谱被压缩，并与参考化合物的压缩红外光谱库进行比较。