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:
Sep. 03, 2019
Filed:
Dec. 01, 2017
Sick Ag, Waldkirch/Breisgau, DE;
SICK AG, Waldkirch/Breisgau, DE;
Abstract
A method of securing a modulation range of a wavelength-variable radiation source as part of the measurement of an absorption line of a substance comprises: the radiation source being controlled to transmit radiation such that the wavelength of the radiation runs through the modulation range in accordance with a time pattern; the radiation being filtered by means of a filter in whose pass band the absorption line is disposed and which has at least one filter flank whose actual wavelength is within the modulation range; a spectrum of the filtered radiation being determined in that the intensity of the filtered radiation is detected with respect to the time pattern; and a determination being made whether the spectrum has the at least one filter flank.