公开(公告)号：US09377359B1

公开(公告)日：2016-06-28

申请号：US14613482

申请日：2015-02-04

Applicant: Axetris AG

Inventor： Andreas Wittmann ,  Marc-Oliver Zufferey ,  Urs Boegli ,  Kai Hassler

IPC: G01N21/00 ,  G01J3/45 ,  G01J3/28 ,  G01J3/44

CPC classification number: G01J3/45 ,  G01J3/0262 ,  G01J3/2803 ,  G01J3/4338 ,  G01J3/4412 ,  G01N21/3504 ,  G01N21/39

Abstract: An optical measuring system and a method for gas detection, the optical measuring system including a light emitter and at least one light detector arranged in at least one housing, wherein the light emitter emits a modulated main light beam with a mean wave length λ0 with a modulation span Δλ. At least one opto-mechanical component, e.g. a housing window including optically effective boundary surfaces, is arranged between the light emitter and the light detector and causes scatter light beams which interfere with the main light beam so that self-mixing occurs and/or etalons are caused. According to the invention the at least one opto-mechanical component is arranged relative to the light emitter and/or the light detector at an optimized distance L which is a function of the wave length λ0 and the modulation span Δλ of the main light beam.

Abstract translation: 一种光学测量系统和用于气体检测的方法，所述光学测量系统包括光发射器和布置在至少一个壳体中的至少一个光检测器，其中所述发光器发射具有平均波长λ0的调制主光束，其具有 调制范围＆Dgr;λ。 至少一个光机械部件，例如。 在光发射器和光检测器之间设置包括光学有效边界面的外壳窗，并引起与主光束干涉的散射光束，从而引起自发混合和/或标准具。 根据本发明，至少一个光机械部件相对于光发射器和/或光检测器以优化距离L布置，该距离L是主光的波长λ0和调制范围＆Dgr;λ的函数 光束。