Title:
SENSOR DEVICE, FAILURE DIAGNOSIS SYSTEM, AND METHOD FOR CONSTRUCTING SENSOR DEVICE
Document Type and Number:
Japanese Patent JP2023184133
Kind Code:
A
Abstract:
To provide a sensor device that simultaneously measures a plurality of portions of piping while suppressing increase in a configuration of the device, and even when the piping has a relatively small outer diameter, can measure the portions while suppressing optical loss.SOLUTION: A sensor device 10 comprises: an optical fiber 11 that is formed with a plurality of FBG sensors 14; and a detection unit that makes light incident on the optical fiber, and detects reflected light that is light reflected by at least one of the plurality of FBG sensors. Portions of the optical fiber where the plurality of FBG sensors is formed are wound around piping 103 to form a winding angle θ1 that is perpendicular or at an acute angle with respect to an axis line O1 of the piping, in a side view of the piping seen from a side of the portions of the optical fiber where the FBG sensors are formed.SELECTED DRAWING: Figure 3
Inventors:
TOMINAGA KOJI
FUJII TAKESHI
OSADA TAIICHI
WADA DAICHI
HISADA SHINSAKU
KAWATSU KANAME
KASAI TOKIO
FUJII TAKESHI
OSADA TAIICHI
WADA DAICHI
HISADA SHINSAKU
KAWATSU KANAME
KASAI TOKIO
Application Number:
JP2022098099A
Publication Date:
December 28, 2023
Filing Date:
June 17, 2022
Export Citation:
Assignee:
NAT RES & DEVELOPMENT AGENCY JAPAN AEROSPACE EXPLORATION AGENCY
International Classes:
G01H9/00; G01M99/00
Attorney, Agent or Firm:
Shu Oikawa
Onami Kazunori
Hiroshi Yamaguchi
Takeo Okita
Onami Kazunori
Hiroshi Yamaguchi
Takeo Okita