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:
Oct. 24, 2023
Filed:
Aug. 29, 2019
Shimadzu Corporation, Kyoto, JP;
Kazune Mano, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
According to an aspect of the present invention, a gas measurement apparatus includes a measurement controller (), a spectrum generator (), a processing unit (), and a result obtaining unit (). The measurement controller () controls the apparatus so that a laser-light source () causes laser light to be incident to an optical resonator () and a wavelength of the laser light is scanned within a predetermined wavelength range, the range including an absorption peak of a target component, thereby performing a CRDS measurement. The spectrum generator () generates an absorption spectrum based on data obtained at each wavelength within a predetermined wavelength range. The processing unit () approximates a waveform shape of the absorption peak of the target component in the absorption spectrum with a polynomial and acquires a coefficient of a term of a predetermined degree in the polynomial. The result obtaining unit () obtains absorption intensity from the coefficient, based on predetermined reference information indicating a correspondence relation between a coefficient of the term of the predetermined degree and the absorption intensity.