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. 25, 2017
Filed:
May. 11, 2015
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Kazushi Oishi, Musashino, JP;
Teruaki Umeno, Musashino, JP;
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Abstract
An optical fiber temperature distribution measuring device measures a temperature distribution along an optical fiber by using backward Raman scattering light generated in the optical fiber. The device includes an arithmetic controller that changes a plurality of calibration parameters in conjunction with each other on the basis of a measured temperature value and a reference temperature value at a to-be-measured point, thereby converging a calibrated value of the measured temperature to a true value.
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