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:
Dec. 27, 1988
Filed:
Nov. 26, 1986
Horiba, Ltd., Kyoto, JP;
Abstract
The absorption analyzer of the type provided with light sources (3a, 3b), cells (1, 2) containing a reference gas and an ingredient gas to be measured, respectively and a detector (5) for determining the absorption of the light emanating from the light sources and passing through the cells, is additonally equipped with a gas filter (8) arranged in the optical path between said light sources and the detector and contains an ingredient gas with an absorption spectrum band that nearly corresponds to that of an ingredient gas to be measured or an ingredient to be measured. The advantage of the invention is that a relatively large range of concentrations of gas ingredients can be measured with the same type of cells having the same cell length.