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:
Apr. 15, 2014
Filed:
Nov. 06, 2009
Che-hsien LI, Kobe, JP;
Kinzo Kishida, Kobe, JP;
Kenichi Nishiguchi, Kobe, JP;
Artur Guzik, Kobe, JP;
Atsushi Makita, Kobe, JP;
Yoshiaki Yamauchi, Kobe, JP;
Che-Hsien Li, Kobe, JP;
Kinzo Kishida, Kobe, JP;
Kenichi Nishiguchi, Kobe, JP;
Artur Guzik, Kobe, JP;
Atsushi Makita, Kobe, JP;
Yoshiaki Yamauchi, Kobe, JP;
Neubrex Co., Ltd., , JP;
Abstract
The present invention provides a distributed optical fiber sensor capable of measuring the strain and temperature of an object to be measured simultaneously and independently with high spatial resolution. A distributed optical fiber sensor FS is a distributed optical fiber sensor which uses an optical fiberas a sensor, and a strain and temperature detectormeasures a Brillouin frequency shift amount caused by a strain and a temperature generated in the optical fiberby using a Brillouin scattering phenomenon, measures a Rayleigh frequency shift amount caused by the strain and temperature generated in the optical fiberby using a Rayleigh scattering phenomenon, and calculates the strain and temperature generated in the optical fiberfrom the measured Brillouin frequency shift amount and Rayleigh frequency shift amount.