发明公开
- 专利标题： SENSOR DEVICE, FAULT DIAGNOSIS SYSTEM, AND METHOD OF INSTALLING SENSOR DEVICE
-
申请号： US18333970申请日： 2023-06-13
-
公开(公告)号： US20230408306A1公开(公告)日： 2023-12-21
- 发明人: Kohji TOMINAGA , Go FUJII , Taiichi NAGATA , Daichi WADA , Shinsaku HISADA , Kaname KAWATSU , Tokio KASAI
- 申请人： Japan Aerospace Exploration Agency
- 申请人地址： JP Tokyo
- 专利权人： Japan Aerospace Exploration Agency
- 当前专利权人： Japan Aerospace Exploration Agency
- 当前专利权人地址： JP Tokyo
- 优先权： JP 22098099 2022.06.17
- 主分类号： G01D5/353
- IPC分类号： G01D5/353 ; G01B11/16
摘要：
A sensor device that makes it possible to simultaneously measure a plurality of portions in a pipe while suppressing optical loss even when the diameter of the pipe is relatively small.
The sensor device includes an optical fiber in which a plurality of FBG sensors are formed and a detection unit that causes light to be incident on the optical fiber and detects reflected light from at least one of the plurality of FBG sensors. The portion of the optical fiber in which the plurality of FBG sensors are formed is wound around a pipe so as to form a winding angle which is a perpendicular or acute angle with an axis of the pipe in a side view of the pipe viewed from the portion of the optical fiber in which the FBG sensors are formed.
The sensor device includes an optical fiber in which a plurality of FBG sensors are formed and a detection unit that causes light to be incident on the optical fiber and detects reflected light from at least one of the plurality of FBG sensors. The portion of the optical fiber in which the plurality of FBG sensors are formed is wound around a pipe so as to form a winding angle which is a perpendicular or acute angle with an axis of the pipe in a side view of the pipe viewed from the portion of the optical fiber in which the FBG sensors are formed.
信息查询
IPC分类:
