JP2018132421A - 光ファイバセンサ - Google Patents
光ファイバセンサ Download PDFInfo
- Publication number
- JP2018132421A JP2018132421A JP2017026270A JP2017026270A JP2018132421A JP 2018132421 A JP2018132421 A JP 2018132421A JP 2017026270 A JP2017026270 A JP 2017026270A JP 2017026270 A JP2017026270 A JP 2017026270A JP 2018132421 A JP2018132421 A JP 2018132421A
- Authority
- JP
- Japan
- Prior art keywords
- core
- optical fiber
- fiber sensor
- refractive index
- central core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 102
- 230000003287 optical effect Effects 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims description 55
- 229910052732 germanium Inorganic materials 0.000 claims description 19
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 19
- 239000000654 additive Substances 0.000 claims description 16
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 13
- 238000005259 measurement Methods 0.000 abstract description 9
- 239000011162 core material Substances 0.000 description 281
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002168 optical frequency-domain reflectometry Methods 0.000 description 5
- 238000009987 spinning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D5/00—Mechanical 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
- G01D5/26—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
- G01D5/3538—Optical fibre sensor using a particular arrangement of the optical fibre itself using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D5/00—Mechanical 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
- G01D5/26—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/161—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
- G02B6/02028—Small effective area or mode field radius, e.g. for allowing nonlinear effects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02042—Multicore optical fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D5/00—Mechanical 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
- G01D5/26—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35306—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
- G01D5/35309—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
- G01D5/35316—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Optical Transform (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
また、本発明の光ファイバセンサは、前記中心コアの実効屈折率ne1と前記外周コアの実効屈折率ne2との比率は、以下の(2)式を満たすように設定されている。
また、本発明の光ファイバセンサは、長手方向の全長に亘り、或いは長手方向の一部の領域にFBGが形成されている。
図1は、本発明の一実施形態による光ファイバセンサを示す斜視透視図である。また、図2は、本発明の一実施形態による光ファイバセンサの断面図である。これら図1,図2に示す通り、本実施形態の光ファイバセンサ1は、中心コア11、外周コア12(外周コア12a〜12c)、及びクラッド13を備えるマルチコアファイバの光ファイバセンサである。尚、クラッド13の外周面は、被覆(図示省略)に覆われていても良い。
次に、中心コア11及び外周コア12の実効屈折率の調整について詳細に説明する。図3は、本発明の一実施形態において中心コア及び外周コアの光路長差を説明するための図である。尚、以下では、光ファイバセンサ1の中心コア11と外周コア12(外周コア12a〜12c)との距離をdとし、光ファイバセンサ1の単位長さ当たりの外周コア12の螺旋回数をfwとする。
次に、上述した光ファイバセンサの製造方法について説明する。図4は、本発明の一実施形態による光ファイバセンサの製造方法を示すフローチャートである。光ファイバセンサを製造する場合には、まず、実効屈折率が互いに異なっていて、所望の実効屈折率差を有する中心コア11のコア材及び外周コア12のコア材を形成する工程が行われる(工程S1)。
0.99988<(ne2/ne1)<1
Claims (6)
- 前記外周コアの実効屈折率ne2は、前記中心コアと前記外周コアとの光路長の比率に合うように、前記中心コアの実効屈折率ne1よりも低く設定されている、請求項1記載の光ファイバセンサ。
- 前記中心コア及び前記外周コアには、同じ濃度のゲルマニウムが第1添加剤として添加されており、
前記外周コアには、屈折率を下げる作用を有する第2添加剤が添加されている、
請求項1から請求項4の何れか一項に記載の光ファイバセンサ。 - 長手方向の全長に亘り、或いは長手方向の一部の領域にFBGが形成されている、請求項1から請求項5の何れか一項に記載の光ファイバセンサ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017026270A JP6360929B1 (ja) | 2017-02-15 | 2017-02-15 | 光ファイバセンサ |
CN201780085908.9A CN110268229B (zh) | 2017-02-15 | 2017-12-08 | 光纤传感器 |
PCT/JP2017/044173 WO2018150699A1 (ja) | 2017-02-15 | 2017-12-08 | 光ファイバセンサ |
EP17897198.2A EP3584542B1 (en) | 2017-02-15 | 2017-12-08 | Optical fiber sensor |
US16/485,096 US10883860B2 (en) | 2017-02-15 | 2017-12-08 | Optical fiber sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017026270A JP6360929B1 (ja) | 2017-02-15 | 2017-02-15 | 光ファイバセンサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6360929B1 JP6360929B1 (ja) | 2018-07-18 |
JP2018132421A true JP2018132421A (ja) | 2018-08-23 |
Family
ID=62904921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017026270A Active JP6360929B1 (ja) | 2017-02-15 | 2017-02-15 | 光ファイバセンサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US10883860B2 (ja) |
EP (1) | EP3584542B1 (ja) |
JP (1) | JP6360929B1 (ja) |
CN (1) | CN110268229B (ja) |
WO (1) | WO2018150699A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6667729B1 (ja) * | 2018-07-17 | 2020-03-18 | 株式会社フジクラ | マルチコア光ファイバ、及び、マルチコア光ファイバの製造方法 |
KR102127897B1 (ko) * | 2019-01-21 | 2020-06-29 | 한국광기술원 | 멀티코어 광섬유를 포함하는 전류 센싱 시스템 및 그의 센싱 방법 |
US10883860B2 (en) | 2017-02-15 | 2021-01-05 | Fujikura Ltd. | Optical fiber sensor |
CN112697231A (zh) * | 2020-11-19 | 2021-04-23 | 电子科技大学 | 一种螺旋排列的光纤光栅液位传感器 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10989865B2 (en) * | 2018-02-05 | 2021-04-27 | University Of Georgia Research Foundation, Inc | Stretchable fiber optic sensor |
JP2023518240A (ja) * | 2020-03-16 | 2023-04-28 | セント・ジュード・メディカル・インターナショナル・ホールディング・エスエーアールエル | 光学センサ基準系アライメントのためのシステムおよび方法 |
US11726257B2 (en) | 2021-03-05 | 2023-08-15 | Corning Incorporated | Multicore optical fiber |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006003197A (ja) * | 2004-06-17 | 2006-01-05 | Hitachi Cable Ltd | Fbgセンサ用光ケーブル |
JP2008175560A (ja) * | 2007-01-16 | 2008-07-31 | Fujikura Ltd | 光ファイバセンサケーブル |
JP2010185729A (ja) * | 2009-02-10 | 2010-08-26 | Fujikura Ltd | 分布型光ファイバ圧力センサケーブル |
WO2016122742A2 (en) * | 2014-11-11 | 2016-08-04 | Luna Innovations Incorporated | Optical fiber and method and apparatus for accurate fiber optic sensing under multiple stimuli |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE649638C (de) | 1935-03-05 | 1937-08-30 | Kampens Mek Verksted As | Schraubenpresse mit zwei oder mehreren ineinandergreifenden Pressschrauben |
JPS5413931B2 (ja) | 1974-06-07 | 1979-06-04 | ||
JPS51121080A (en) | 1975-04-16 | 1976-10-22 | Masao Moriyama | Apparatus for pullinggout of mandrel in fw method |
US20070201793A1 (en) * | 2006-02-17 | 2007-08-30 | Charles Askins | Multi-core optical fiber and method of making and using same |
US7317849B1 (en) | 2006-06-08 | 2008-01-08 | Institut National D'optique | Optical fiber sensor and method |
EP2124885A2 (en) | 2006-10-27 | 2009-12-02 | Giuseppe Trigiante | Compositions and method for hair loss prevention |
KR101344496B1 (ko) | 2007-10-18 | 2013-12-24 | 세메스 주식회사 | 기판 성형 장치 |
KR20090039426A (ko) | 2007-10-18 | 2009-04-22 | 흥성윈 주식회사 | 건축용 창호 |
FR2930997B1 (fr) | 2008-05-06 | 2010-08-13 | Draka Comteq France Sa | Fibre optique monomode |
WO2009154216A1 (ja) | 2008-06-20 | 2009-12-23 | 国立大学法人横浜国立大学 | 分布型光ファイバ水素センサ、多点観測用の分布型光ファイバ水素センサ、水素感応膜及びその製造方法 |
US7720322B2 (en) | 2008-06-30 | 2010-05-18 | Intuitive Surgical, Inc. | Fiber optic shape sensor |
JP5232982B2 (ja) | 2008-08-28 | 2013-07-10 | 株式会社フジクラ | 光ファイバ位置特定のための光学マーキング部を備えた光ファイバセンサおよび光ファイバセンサの計測方法と光ファイバセンサ装置 |
US8773650B2 (en) | 2009-09-18 | 2014-07-08 | Intuitive Surgical Operations, Inc. | Optical position and/or shape sensing |
US9264992B2 (en) | 2009-09-22 | 2016-02-16 | Samsung Electronics Co., Ltd. | Method and system for announcement time of idle timeout for power saving operations in wireless networks |
US8265431B2 (en) | 2009-11-06 | 2012-09-11 | Baker Hughes Incorporated | Rotated single or multicore optical fiber |
JP5678679B2 (ja) * | 2010-01-22 | 2015-03-04 | 住友電気工業株式会社 | マルチコアファイバ |
CN101881858B (zh) * | 2010-06-11 | 2012-07-11 | 哈尔滨工程大学 | 可实现微小粒子旋转的卫星式螺旋多芯光纤微光手及制法 |
JP4962608B2 (ja) | 2010-08-27 | 2012-06-27 | セイコーエプソン株式会社 | 液体噴射装置 |
JP6032009B2 (ja) * | 2010-08-30 | 2016-11-24 | 住友電気工業株式会社 | マルチコア光ファイバ |
JP5595888B2 (ja) | 2010-12-09 | 2014-09-24 | 株式会社フジクラ | マルチコアファイバ |
JP2012134673A (ja) | 2010-12-20 | 2012-07-12 | Toshiba Corp | 方向性結合器および結合度調整方法 |
JP2012168453A (ja) * | 2011-02-16 | 2012-09-06 | Hitachi Cable Ltd | マルチコア光ファイバ及びマルチコア光ファイバの製造方法並びにマルチコア光ファイバ同士の接続方法 |
JP2012211964A (ja) | 2011-03-30 | 2012-11-01 | Fujikura Ltd | マルチコアファイバ |
EP2743742B1 (en) | 2011-08-08 | 2018-01-10 | Furukawa Electric Co., Ltd. | Multi-core optical fiber and optical transmission system |
JP5916525B2 (ja) | 2012-01-19 | 2016-05-11 | 株式会社フジクラ | マルチコアファイバ |
CN104169678B (zh) | 2012-03-16 | 2017-10-24 | 皇家飞利浦有限公司 | 用于确定相关联对象的位置和/或形状的光学感测系统 |
DK2843449T3 (en) * | 2012-04-26 | 2019-04-29 | Sumitomo Electric Industries | MULTI-CORN OPTICAL FIBER TRANSFER SYSTEM |
US9574911B2 (en) | 2012-08-09 | 2017-02-21 | Corning Incorporated | Two-core optical fibers for distributed fiber sensors and systems |
SG11201500648PA (en) | 2012-08-31 | 2015-03-30 | Dow Global Technologies Llc | Heat-resistant polyolefin compositions suitable for films |
JP5413931B2 (ja) | 2013-02-20 | 2014-02-12 | 株式会社フジクラ | 光ファイバ位置特定のための光学マーキング部を備えた光ファイバセンサおよび光ファイバセンサの計測方法と光ファイバセンサ装置 |
US10132614B2 (en) * | 2014-12-15 | 2018-11-20 | Intuitive Surgical Operations, Inc. | Dissimilar cores in multicore optical fiber for strain and temperature separation |
JP2017026270A (ja) | 2015-07-27 | 2017-02-02 | パナソニックIpマネジメント株式会社 | 集塵システムおよび集塵方法 |
US9885825B2 (en) * | 2016-04-18 | 2018-02-06 | Chiral Photonics, Inc. | Pitch reducing optical fiber array and multicore fiber comprising at least one chiral fiber grating |
US10429584B2 (en) * | 2016-11-22 | 2019-10-01 | Lumentum Operations Llc | Rotary optical beam generator |
JP6360929B1 (ja) | 2017-02-15 | 2018-07-18 | 株式会社フジクラ | 光ファイバセンサ |
JP2019085147A (ja) | 2017-11-08 | 2019-06-06 | サーモス株式会社 | バイトバルブ及びバイトバルブ付き飲料容器用ポーチ |
-
2017
- 2017-02-15 JP JP2017026270A patent/JP6360929B1/ja active Active
- 2017-12-08 WO PCT/JP2017/044173 patent/WO2018150699A1/ja unknown
- 2017-12-08 US US16/485,096 patent/US10883860B2/en active Active
- 2017-12-08 CN CN201780085908.9A patent/CN110268229B/zh active Active
- 2017-12-08 EP EP17897198.2A patent/EP3584542B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006003197A (ja) * | 2004-06-17 | 2006-01-05 | Hitachi Cable Ltd | Fbgセンサ用光ケーブル |
JP2008175560A (ja) * | 2007-01-16 | 2008-07-31 | Fujikura Ltd | 光ファイバセンサケーブル |
JP2010185729A (ja) * | 2009-02-10 | 2010-08-26 | Fujikura Ltd | 分布型光ファイバ圧力センサケーブル |
WO2016122742A2 (en) * | 2014-11-11 | 2016-08-04 | Luna Innovations Incorporated | Optical fiber and method and apparatus for accurate fiber optic sensing under multiple stimuli |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10883860B2 (en) | 2017-02-15 | 2021-01-05 | Fujikura Ltd. | Optical fiber sensor |
JP6667729B1 (ja) * | 2018-07-17 | 2020-03-18 | 株式会社フジクラ | マルチコア光ファイバ、及び、マルチコア光ファイバの製造方法 |
JP2020101817A (ja) * | 2018-07-17 | 2020-07-02 | 株式会社フジクラ | マルチコア光ファイバ |
KR102127897B1 (ko) * | 2019-01-21 | 2020-06-29 | 한국광기술원 | 멀티코어 광섬유를 포함하는 전류 센싱 시스템 및 그의 센싱 방법 |
CN112697231A (zh) * | 2020-11-19 | 2021-04-23 | 电子科技大学 | 一种螺旋排列的光纤光栅液位传感器 |
Also Published As
Publication number | Publication date |
---|---|
EP3584542A4 (en) | 2020-12-02 |
EP3584542B1 (en) | 2022-08-17 |
US10883860B2 (en) | 2021-01-05 |
EP3584542A1 (en) | 2019-12-25 |
WO2018150699A1 (ja) | 2018-08-23 |
CN110268229A (zh) | 2019-09-20 |
CN110268229B (zh) | 2021-09-28 |
JP6360929B1 (ja) | 2018-07-18 |
US20200041313A1 (en) | 2020-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6360929B1 (ja) | 光ファイバセンサ | |
US20070201793A1 (en) | Multi-core optical fiber and method of making and using same | |
EP3234667B1 (en) | Dissimilar cores in multicore optical fiber for strain and temperature separation | |
JP6997186B2 (ja) | 光学導波路の屈曲及び/またはひずみを決定するための方法 | |
US20100166358A1 (en) | Dual Fiber Grating and Methods of Making and Using Same | |
US11473943B2 (en) | Optical fiber sensor | |
JP7454557B2 (ja) | 光学形状感知システム及び方法 | |
AU2013360255A1 (en) | Hydrogen resistant downhole optical fiber sensing | |
JP6722368B2 (ja) | マルチコア光ファイバ | |
MX2012006300A (es) | Fibra optica insensible a dobleces con resistencia mejorada de hidrogeno. | |
Vincent et al. | Curvature and shape sensing for continuum robotics using draw tower gratings in multi core fiber | |
KR20200007272A (ko) | Fbg 기반 비틀림 센서 장치 | |
RU171511U1 (ru) | Волоконно-оптический комбинированный сенсор | |
KR20220102916A (ko) | 장주기 광섬유 격자 기반 이중 클래딩 광섬유 마하젠더 간섭계 및 이를 이용한 스트레인에 무관한 굽힘 및 온도 동시 측정장치 및 방법 | |
Zhang | Multicore fibers for sensing applications | |
KR20040027737A (ko) | 긴 길이를 가지는 장주기 광섬유 격자와 이를 이용한광섬유 무게센서 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20180529 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20180625 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6360929 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |