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. 19, 2021
Filed:
Sep. 05, 2018
Yokogawa Electric Corporation, Tokyo, JP;
Yoshihisa Hidaka, Musashino, JP;
Gen Matsuno, Musashino, JP;
Shigeru Takezawa, Musashino, JP;
Hideko Tanaka, Musashino, JP;
Kaori Sakuma, Musashino, JP;
Akihiro Murata, Musashino, JP;
Toshiki Ohara, Musashino, JP;
YOKOGAWA ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A method for testing an analysis apparatus that analyzes a first fluid flowing through a pipe using light that has passed through a probe attached to and disposed inside the pipe such that a portion of a light path passes outside a housing of the probe. The method includes: after a second fluid that absorbs less of the light than the first fluid has been introduced into the pipe, introducing a third fluid having predetermined absorption characteristics into the housing of the probe; and analyzing the absorption characteristics of the third fluid using the light that has passed through the probe.