公开(公告)号：US20140306112A1

公开(公告)日：2014-10-16

申请号：US14317070

申请日：2014-06-27

Applicant: MSA TECHNOLOGY, LLC.

Inventor： CHRISTOPHER D. STARTA ,  ROBERT E. UBER ,  THOMAS TRAUTZSCH ,  FREDERICK J. SCHULER

IPC: G01N21/59

CPC classification number: G01N21/59 ,  G01N21/3151 ,  G01N21/3504 ,  G01N2201/023 ,  G01N2201/0636 ,  G01N2201/0662

Abstract: A closed path infrared sensor includes an enclosure, a first energy source within the enclosure, at least a second energy source within the enclosure, at least one detector system within the enclosure and a mirror system external to the enclosure and spaced from the enclosure. The mirror system reflects energy from the first energy source to the at least one detector system via a first analytical path and reflects energy from the second energy source to the at least one detector system via a second analytical path. Each of the first analytical path and the second analytical path are less than two feet in length.

Abstract translation: 封闭路径红外传感器包括外壳，外壳内的第一能量源，外壳内的至少第二能量源，外壳内的至少一个检测器系统和外壳外部与外壳隔开的反射镜系统。 反射镜系统经由第一分析路径将来自第一能量源的能量反射到至少一个检测器系统，并且经由第二分析路径将来自第二能量源的能量反射到至少一个检测器系统。 第一分析路径和第二分析路径中的每一条长度小于两英尺。