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:
Jul. 21, 2015
Filed:
Feb. 20, 2013
Applicant:
Korea Institute of Science and Technology, Seoul, KR;
Inventors:
Yong Won Song, Daejeon, KR;
Jung Ah Lim, Chungcheongnam-Do, KR;
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/45 (2006.01); G02B 6/10 (2006.01); G01J 3/26 (2006.01); G01J 3/02 (2006.01); G01N 21/77 (2006.01);
U.S. Cl.
CPC ...
G01J 3/45 (2013.01); G01J 3/0218 (2013.01); G01J 3/26 (2013.01); G01N 21/7703 (2013.01); G02B 6/10 (2013.01); G01N 2021/772 (2013.01); G01N 2021/7723 (2013.01); G01N 2021/7779 (2013.01);
Abstract
The present invention relates to an apparatus for gas sensing including: a header part to generate interference wave to light from light source by the principle of fiber fabry-perot interferometer; and an optical spectrum analyzer to decide existence of specific gas based on change of spectrum periodicity of the interference wave, wherein the header part includes a sensing material that expands or shrinks by the above specific gas and the above interference wave changes its spectrum periodicity depending on expansion and shrinkage of the above sensing material.