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1. WO2020111260 - OPTICAL FIBER SENSING EXPANSION DEVICE AND OPTICAL FIBER SENSING SYSTEM

Publication Number WO/2020/111260
Publication Date 04.06.2020
International Application No. PCT/JP2019/046875
International Filing Date 29.11.2019
IPC
G01D 5/353 2006.01
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26using optical means, i.e. using infra-red, visible or ultra-violet light
32with attenuation or whole or partial obturation of beams of light
34the beams of light being detected by photocells
353influencing the transmission properties of an optical fibre
CPC
G01D 5/353
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
32with attenuation or whole or partial obturation of beams of light
34the beams of light being detected by photocells
353influencing the transmission properties of an optical fibre
Applicants
  • 日本電気株式会社 NEC CORPORATION [JP]/[JP]
Inventors
  • 依田 幸英 YODA Yukihide
  • 青野 義明 AONO Yoshiaki
Agents
  • 家入 健 IEIRI Takeshi
Priority Data
2018-22598930.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) OPTICAL FIBER SENSING EXPANSION DEVICE AND OPTICAL FIBER SENSING SYSTEM
(FR) DISPOSITIF D'EXPANSION DE DÉTECTION À FIBRE OPTIQUE ET SYSTÈME DE DÉTECTION À FIBRE OPTIQUE
(JA) 光ファイバセンシング拡張装置及び光ファイバセンシングシステム
Abstract
(EN)
Provided according to the present disclosure is an optical fiber sensing expansion device (30) provided with a sensor unit (32) storing a sensing optical fiber (33), a fixing unit for fixing the sensor unit (32) to an object to be monitored (40), and a fiber connection unit (31) that can connect the sensing optical fiber (33) to an optical fiber (10). The fiber connection unit (31) superimposes a detection result from the sensor unit (32) on an optical signal transmitted by the optical fiber (10).
(FR)
La présente invention concerne un dispositif d'expansion de détection à fibre optique (30) qui comprend une unité de capteur (32) stockant une fibre optique de détection (33), une unité de fixation pour fixer l'unité de capteur (32) à un objet à surveiller (40), et une unité de connexion de fibre (31) qui peut connecter la fibre optique de détection (33) à une fibre optique (10). L'unité de connexion de fibre (31) superpose un résultat de détection provenant de l'unité de capteur (32) sur un signal optique transmis par la fibre optique (10).
(JA)
本開示の光ファイバセンシング拡張装置(30)は、センシング用光ファイバ(33)を格納するセンサ部(32)と、前記センサ部(32)を監視対象物(40)に固定する固定部と、前記センシング用光ファイバ(33)を光ファイバ(10)に接続可能なファイバ接続部(31)と、を備え、前記ファイバ接続部(31)は、前記センサ部(32)の検出結果を、前記光ファイバ(10)によって伝送される光信号に重畳する。
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