Title:
光ファイバセンサ、地震探査方法、石油、天然ガス貯留層分布の計測方法、歪み検知方法および地層の割れ目位置特定方法
Document Type and Number:
Japanese Patent JP6535006
Kind Code:
B2
Abstract:
An optical fiber sensor includes: a transmitting unit configured to output two lights into an optical fiber, wavelengths of the two lights being different from each other at a specific time, and at least one of the wavelengths of the two lights varying with time; and a measuring unit configured to receive back-scattered light output from the optical fiber and detect a temporal variation of an optical phase at an arbitrary interval in a longitudinal direction of the optical fiber by measuring measure an interference state of the two lights.
Inventors:
Tadakuma Masateru
Application Number:
JP2016540740A
Publication Date:
June 26, 2019
Filing Date:
August 06, 2015
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
G01D5/353; E21B47/00; G01V1/00
Domestic Patent References:
| JP2003505700A | ||||
| JP201138839A | ||||
| JP2010216877A |
Foreign References:
| WO2004040241A1 |
Attorney, Agent or Firm:
Hiroaki Sakai
Tashiro Toshio
Tashiro Toshio