The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2019
Filed:
Mar. 22, 2018
Axetris Ag, Kägiswil, CH;
Axetris AG, Kägiswil, CH;
Abstract
A method for operating an optical measuring system for measuring the concentration of a gas component in a measured gas, based on wavelength modulation spectroscopy, wherein a laser light source is operated in a current-modulated manner with a base current Iand a modulation current Iand a laser beam of the wavelength λhaving a wavelength modulation amplitude Δλis emitted, and the wavelength modulation amplitude Δλof the laser light is kept constant by way of variable setting of the current modulation amplitude ΔI. The method provides for keeping a modulated power ΔPat an internal resistor Rof the laser light source constant at the operating point so as to stabilize the wavelength modulation amplitude Δλ.