公开(公告)号：EP3767278A1

公开(公告)日：2021-01-20

申请号：EP20180817.7

申请日：2020-06-18

Applicant: SpectraSensors, Inc.

Inventor： Liu, Xiang ,  Feitisch, Alfred ,  Yeh, Gary ,  Chang, Chih-Husan

IPC: G01N21/3504 ,  G01N21/39 ,  G01J3/433

Abstract: A method for implementation by a laser spectrometer (200, 300) is provided. The method includes first scanning (110), by a control unit (255) using a first set of laser spectrometer operating parameters, a first wavelength range by adjusting a wavelength of light of a beam emitted by a laser light source (205) and passing through a sample gas. The first wavelength range encompasses a first spectral feature corresponding to a first constituent. The method also includes at least one second scanning (120), by the control unit (255) using a second set of laser spectrometer operating parameters, a second wavelength range by adjusting the wavelength of light emitted from the laser light source (205) and passing through the sample gas. The second wavelength range has a second spectral feature corresponding to at least one second constituent. The control unit (255) also determines (130) a first concentration of the first constituent and a second concentration of the at least one second constituent.