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:
May. 28, 2019
Filed:
Dec. 16, 2016
Stanley Electric Co., Ltd., Meguro-ku, Tokyo, JP;
Tokyo University of Science Foundation, Shinjuku-ku, Tokyo, JP;
Koji Matsumoto, Tokyo, JP;
Masakazu Satsu, Tokyo, JP;
Takanori Aimono, Tokyo, JP;
Keiichi Ikegami, Tokyo, JP;
Shinichi Uozumi, Tokyo, JP;
Keishi Nishio, Tokyo, JP;
Yuki Yamaguchi, Tokyo, JP;
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
TOKYO UNIVERSITY OF SCIENCE FOUNDATION, Tokyo, JP;
Abstract
Provided is a hydrogen concentration measuring device capable of measuring with high accuracy a hydrogen concentration over an extensive range by a simple configuration. The device includes: a sensor chip which detects the electric resistance of a sensing film; an optical measurement unit which detects the transmitted light intensity of the film; and a controller. The controller performs measurement processing such that a hydrogen concentration in the gas atmosphere is measured based on the detected electric resistance in a first measurement range and based on the detected transmitted light intensity in a second measurement range and is determined so as to reduce a difference between the hydrogen concentration based on the detected electric resistance and the hydrogen concentration based on the detected transmitted light intensity in the overlap of the first measurement range and the second measurement range.