JP6771100B2 - 溶接固定可能なfbgひずみセンサ装置 - Google Patents
溶接固定可能なfbgひずみセンサ装置 Download PDFInfo
- Publication number
- JP6771100B2 JP6771100B2 JP2019516379A JP2019516379A JP6771100B2 JP 6771100 B2 JP6771100 B2 JP 6771100B2 JP 2019516379 A JP2019516379 A JP 2019516379A JP 2019516379 A JP2019516379 A JP 2019516379A JP 6771100 B2 JP6771100 B2 JP 6771100B2
- Authority
- JP
- Japan
- Prior art keywords
- protective cover
- strain sensor
- fbg strain
- sensor device
- support portion
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title description 6
- 230000001681 protective effect Effects 0.000 claims description 40
- 239000013307 optical fiber Substances 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 239000011796 hollow space material Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
-
- 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
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
-
- 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
- G02B6/02209—Mounting means, e.g. adhesives, casings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Description
−当該保護カバーが、光ファイバーに沿って薄く、かつ、狭い幅で形成されているとともに、センサ支持部に接着されており、その結果、光ファイバーがセンサ支持部に固定されているとともに上方から保護されていること、
−光ファイバーの両端部分のそれぞれにおいて、すなわち信号ラインとの各接続箇所において、当該保護カバーが拡大して構成されているとともに、同様にセンサ支持部に接着されていること
−保護カバーの下方に存在する中空空間には充填体が配置されていること
を有している。
保護カバーは、ブラッグ格子を有する光ファイバーに沿って、センサ支持部における光ファイバーの固定に寄与するとともに、同時に、接触に対する比較的良好な保護を提供する。保護カバーの拡大された部分における薄い壁は、鋼と合成樹脂の異なる熱膨張係数により生じるひずみの差を吸収することに寄与する。カバーの拡大された両端部分のそれぞれが完全に合成樹脂で構成され、その下方に中空空間が存在しなければ、異なる材料のひずみにより、センサ支持部がワークピース表面からはがれることとなることがあり、その結果、ブラッグ格子を有する光ファイバーに沿ってのみ、センサ支持部とワークピース表面の間の機械的な結合が残ることとなる。この場合、わずかな機械的な負荷でセンサが破壊されることがある。さらに、カバーにおける薄壁状の拡大された端部分は、弾性的な充填体で満たされている。この理由は、動的な測定時には、光ファイバーの端部が、所定の周波数において機械的な振動へ励起され得るためである。これは、光ファイバーの破断につながり、したがって、センサの完全な故障を生じさせ得るものである。
2 FBGひずみセンサ
3a,3b 信号ライン
4 センサ支持部
5 保護カバー
6 充填体
7 溶接点
8 保護カバーの接着縁部
W 保護カバーの壁厚
D 保護カバーの厚さ
Claims (8)
- 鋼板から成るセンサ支持部(4)と、該センサ支持部に固定された少なくとも1つのFBGひずみセンサ(2)とを有するFBGひずみセンサ装置(1)であって、
−前記FBGひずみセンサ(2)が、間に少なくとも1つのブラッグ格子が設けられた2つの端部分を有する光ファイバーを備えており、前記端部分のそれぞれには、測定信号を伝達する光学的な信号ライン(3a,3b)が接続されており、
−保護カバー(5)が設けられており、該保護カバーは、以下の特徴:
−−当該保護カバー(5)が、前記光ファイバーに沿って薄く、かつ、狭い幅で形成されているとともに、前記センサ支持部(4)に接着されており、その結果、その下に位置する前記光ファイバーが前記ブラッグ格子と共に前記センサ支持部(4)に固定されていること、
−−前記光ファイバーの両端部分のそれぞれにおいて、すなわち前記信号ライン(3a,3b)との各接続箇所において、当該保護カバーが拡大して構成されており、その結果、その下に中空空間が形成されていること、及び
−−前記拡大された保護カバーの縁部が同様にセンサ支持部に接着されていること
を有しており、
−前記中空空間には、前記接続箇所を振動減衰するように埋設する弾性的な充填体(6)が配置されている
ことを特徴とするFBGひずみセンサ装置。 - 前記センサ支持部(4)は、前記光ファイバーの範囲では、前記保護カバーの前記拡大された部分の範囲における幅よりも幅が狭いことを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
- 前記保護カバーがエポキシ樹脂で構成されていることを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
- 前記保護カバーが半円状に形成されていることを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
- 前記光学的な信号ライン(3a,3b)が鋼補強されていることを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
- 少なくとも前記ブラッグ格子の範囲において、前記保護カバーが、前記ブラッグ格子を有する前記光ファイバーの直径の最大で3倍の幅と、当該直径の最大で2.5倍の厚さとで形成されていることを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
- 前記センサ支持部(4)が三角形として形成されているとともに、該三角形の各辺に前記FBGひずみセンサ(2)が固定されていることを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
- 前記センサ支持部(4)が矩形として形成されているとともに、該矩形の各側に前記FBGひずみセンサ(2)が固定されていることを特徴とする請求項1に記載のFBGひずみセンサ装置(1)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016014280.4A DE102016014280B4 (de) | 2016-11-30 | 2016-11-30 | Anschweißbare FBG-Dehnungssensoranordnung |
DE102016014280.4 | 2016-11-30 | ||
PCT/DE2017/000225 WO2018099501A1 (de) | 2016-11-30 | 2017-07-24 | ANSCHWEIßBARE FBG-DEHNUNGSSENSORANORDNUNG |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020503494A JP2020503494A (ja) | 2020-01-30 |
JP6771100B2 true JP6771100B2 (ja) | 2020-10-21 |
Family
ID=60042926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019516379A Active JP6771100B2 (ja) | 2016-11-30 | 2017-07-24 | 溶接固定可能なfbgひずみセンサ装置 |
Country Status (11)
Country | Link |
---|---|
US (1) | US10584959B2 (ja) |
EP (1) | EP3465077B1 (ja) |
JP (1) | JP6771100B2 (ja) |
KR (1) | KR102185148B1 (ja) |
CN (1) | CN109997012B (ja) |
BR (1) | BR112019000308B1 (ja) |
DE (1) | DE102016014280B4 (ja) |
DK (1) | DK3465077T3 (ja) |
ES (1) | ES2798084T3 (ja) |
PT (1) | PT3465077T (ja) |
WO (1) | WO2018099501A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10771159B2 (en) * | 2014-07-31 | 2020-09-08 | iSenseClound, Inc. | Fiber optic patch and voltage conditioning |
GB201700573D0 (en) * | 2017-01-12 | 2017-03-01 | City Univ Of London | Optical monitoring system |
CN111103050B (zh) * | 2019-12-26 | 2021-04-02 | 武汉理工大学 | 基于聚合物的光纤光栅振动传感器 |
CN111964603A (zh) * | 2020-09-15 | 2020-11-20 | 中北大学 | 一种基于光杠杆的光纤布拉格光栅应变传感器的标定方法 |
CN113218319B (zh) * | 2021-05-06 | 2023-06-23 | 桂林理工大学 | 光纤光栅应变传感器压拉转换与灵敏度增强装置及其使用方法 |
RU2771446C1 (ru) * | 2021-07-06 | 2022-05-04 | Акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор" | Чувствительный элемент волоконно-оптического тензометрического датчика для измерения продольного механического натяжения и способ измерения продольного механического натяжения объекта волоконно-оптическим тензометрическим датчиком |
CN114199156B (zh) * | 2021-12-15 | 2023-08-25 | 桂林航天工业学院 | 一种基于双fbg形状传感器的翼型曲面形状重构方法 |
KR20230136930A (ko) | 2022-03-21 | 2023-10-04 | 최재욱 | 낚시용 보트 |
IT202200007103A1 (it) * | 2022-04-11 | 2023-10-11 | Enea Agenzia Naz Per Le Nuove Tecnologie Lenergia E Lo Sviluppo Economico Sostenibile | Procedimento per la realizzazione di una catena di sensori in fibra ottica e catena di sensori in fibra ottica |
Family Cites Families (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2658324C2 (de) | 1976-12-22 | 1982-05-27 | Kraftwerk Union AG, 4330 Mülheim | Verfahren zur Messung von statischen Betriebsbeanspruchungen an Bauteilen des schweren Maschinen- oder Apparatebaues |
US6768825B2 (en) | 1998-05-06 | 2004-07-27 | Weatherford/Lamb, Inc. | Optical sensor device having creep-resistant optical fiber attachments |
JP2000028329A (ja) * | 1998-07-13 | 2000-01-28 | Furukawa Electric Co Ltd:The | 歪み検知ユニット |
GB9824756D0 (en) * | 1998-11-11 | 1999-01-06 | Europ Economic Community | A strain sensor and strain sensing apparatus |
US6310990B1 (en) * | 2000-03-16 | 2001-10-30 | Cidra Corporation | Tunable optical structure featuring feedback control |
KR20010080688A (ko) * | 1998-12-04 | 2001-08-22 | 추후제출 | 압축 조정된 브래그 격자 및 레이저 |
AU2000227912A1 (en) * | 2000-03-06 | 2001-09-17 | Gsl Galli, Schneider And Lehner Ag | Optical fibre device for measuring stresses |
JP2001296110A (ja) * | 2000-04-17 | 2001-10-26 | Ntt Advanced Technology Corp | 貼り付け型光ファイバセンサ |
US6668105B2 (en) * | 2000-07-27 | 2003-12-23 | Systems Planning & Analysis, Inc. | Fiber optic strain sensor |
WO2002046712A1 (en) * | 2000-12-07 | 2002-06-13 | Nanyang Technological University | Fiber optic force sensor |
US8073293B2 (en) * | 2002-03-18 | 2011-12-06 | Weatherford, Lamb, Inc. | Sensing device having a large diameter D-shaped optical waveguide |
US7110624B2 (en) * | 2001-12-14 | 2006-09-19 | Evans & Sutherland Computer Corporation | Fiber optic mechanical/thermal tuner and isolator |
KR100495416B1 (ko) * | 2003-07-24 | 2005-06-16 | 이금석 | 광섬유격자센서용 고정구 |
DE10335337A1 (de) | 2003-08-01 | 2005-03-24 | Siemens Ag | Sensoranordnung |
CN2651704Y (zh) * | 2003-11-04 | 2004-10-27 | 刘育梁 | 光纤光栅应变传感器 |
JP4073896B2 (ja) * | 2004-05-26 | 2008-04-09 | 三菱電機株式会社 | 光ファイバセンサ複合ケーブルと光ファイバ監視システム用ネット |
CA2601004C (en) * | 2005-03-10 | 2015-12-29 | Commonwealth Scientific And Industrial Research Organisation | An apparatus for pressure sensing |
JP4519703B2 (ja) | 2005-04-19 | 2010-08-04 | 三菱重工業株式会社 | ひずみゲージ及びひずみゲージ取付方法 |
JP4626535B2 (ja) * | 2006-02-22 | 2011-02-09 | 日立電線株式会社 | テープ状光ファイバケーブル |
US7796843B2 (en) * | 2007-03-21 | 2010-09-14 | University Of Houston | Design and performance of a Fiber Bragg grating displacement sensor for measurement of movement |
US7856888B2 (en) * | 2007-11-15 | 2010-12-28 | Micron Optics Inc. | Fiber optic strain gage and carrier |
CN101701450B (zh) * | 2009-09-30 | 2011-12-21 | 法尔胜集团公司 | 内置光纤光栅传感器的桥梁用智能缆索系统 |
FR2953943B1 (fr) * | 2010-01-11 | 2013-04-05 | Terre Armee Int | Bande souple comprenant au moins une fibre optique pour effectuer des mesures de deformation et/ou de temperature |
CN201917690U (zh) * | 2010-12-09 | 2011-08-03 | 江苏通光信息有限公司 | 铠装保护的全紧结构分布式应变传感光缆 |
CN102278947B (zh) * | 2011-04-29 | 2013-04-24 | 大连理工大学 | 用于沥青混凝土路面应变、裂纹测试的封装fbg传感器 |
DE102011118526A1 (de) * | 2011-11-15 | 2013-05-16 | Hottinger Baldwin Messtechnik Gmbh | FBG-Dehnungssensor |
DK2780664T3 (en) * | 2011-11-15 | 2018-01-08 | Hottinger Baldwin Messtechnik Gmbh | FBG strain sensor for curved surfaces |
DE102011118527A1 (de) * | 2011-11-15 | 2013-05-16 | Hottinger Baldwin Messtechnik Gmbh | FBG-Dehnungssensor mit erweitertem Temperaturbereich |
CN102628673A (zh) * | 2012-03-30 | 2012-08-08 | 大连理工大学 | 适合道路结构全尺度监测的铠装光纤传感器 |
KR101465156B1 (ko) * | 2013-10-01 | 2014-11-26 | 한국표준과학연구원 | 최대 변형률 측정을 위한 fbg 센서, 제조방법 및 사용방법 |
CN103669429B (zh) * | 2013-12-12 | 2016-02-10 | 河海大学 | 基于fbg传感器的圆形实心混凝土桩桩身应变监测方法 |
US9857250B2 (en) * | 2013-12-27 | 2018-01-02 | Cmiws Co., Ltd. | Strain sensor and method for installing strain sensor |
CN104048615B (zh) * | 2014-06-30 | 2017-02-15 | 国网河南省电力公司电力科学研究院 | 点焊式光纤光栅应变传感器及其安装方法 |
CN108413886A (zh) * | 2018-01-23 | 2018-08-17 | 山西省交通科学研究院 | 一种能够监测土体微小变形的fbg封装结构及封装方法 |
-
2016
- 2016-11-30 DE DE102016014280.4A patent/DE102016014280B4/de not_active Expired - Fee Related
-
2017
- 2017-07-24 CN CN201780074284.0A patent/CN109997012B/zh active Active
- 2017-07-24 DK DK17780988.6T patent/DK3465077T3/da active
- 2017-07-24 BR BR112019000308-8A patent/BR112019000308B1/pt active IP Right Grant
- 2017-07-24 US US16/464,990 patent/US10584959B2/en active Active
- 2017-07-24 PT PT177809886T patent/PT3465077T/pt unknown
- 2017-07-24 JP JP2019516379A patent/JP6771100B2/ja active Active
- 2017-07-24 EP EP17780988.6A patent/EP3465077B1/de active Active
- 2017-07-24 ES ES17780988T patent/ES2798084T3/es active Active
- 2017-07-24 WO PCT/DE2017/000225 patent/WO2018099501A1/de unknown
- 2017-07-24 KR KR1020197018120A patent/KR102185148B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO2018099501A1 (de) | 2018-06-07 |
DK3465077T3 (da) | 2020-06-29 |
CN109997012B (zh) | 2021-07-20 |
US20190277627A1 (en) | 2019-09-12 |
BR112019000308B1 (pt) | 2023-04-04 |
BR112019000308A2 (pt) | 2019-06-18 |
ES2798084T3 (es) | 2020-12-09 |
KR102185148B1 (ko) | 2020-12-02 |
DE102016014280A1 (de) | 2018-05-30 |
EP3465077B1 (de) | 2020-03-25 |
CN109997012A (zh) | 2019-07-09 |
JP2020503494A (ja) | 2020-01-30 |
KR20190089181A (ko) | 2019-07-30 |
DE102016014280B4 (de) | 2018-07-12 |
EP3465077A1 (de) | 2019-04-10 |
US10584959B2 (en) | 2020-03-10 |
PT3465077T (pt) | 2020-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6771100B2 (ja) | 溶接固定可能なfbgひずみセンサ装置 | |
JP5313608B2 (ja) | 光ファイバセンサ | |
JP6258860B2 (ja) | 湾曲した表面のためのfbg延びセンサ | |
JP4318113B2 (ja) | ボルトゲージ | |
JP5034090B2 (ja) | 光ファイバー格子センサを用いた内空変位計測装置及びこれを用いた計測方法 | |
KR940020110A (ko) | 기계 부품에 가해지는 응력을 측정하는 장치 및 이 장치를 체결 고정시키는 방법 | |
JP6071577B2 (ja) | 斜面安定化工法における斜面変動検出構造 | |
JP6523178B2 (ja) | 歪みセンサ及び歪みセンサの製造方法 | |
JP2013104753A5 (ja) | ||
JP2003222507A (ja) | 光ファイバセンサ及びそれを利用した歪み監視システム | |
KR200404652Y1 (ko) | 광섬유 브래그 격자 센서를 이용한 콘크리트 구조물 변형률측정장치 | |
JP6346052B2 (ja) | ロードセル | |
EP3532816B1 (en) | Strain gauge | |
KR102186967B1 (ko) | 만곡 표면용 용접형 변형률 센서 | |
JP3772303B2 (ja) | 歪量測定装置 | |
CN211121084U (zh) | 一种双槽盖板式光纤应变传感器封装结构 | |
JP2005199336A (ja) | 金型及び同金型に使用する歪みセンサユニット | |
RU2618496C1 (ru) | Датчик ускорения | |
JP2022532081A (ja) | トランスデューサアセンブリ | |
US20050236559A1 (en) | Fiber grating strain sensors for civil structures | |
CN100417965C (zh) | 埋入式光纤装置 | |
KR200462615Y1 (ko) | 전기저항식 센서의 강관부재 고정구조 | |
JP7321415B2 (ja) | ひずみ計測装置およびひずみ計測方法 | |
JP6228790B2 (ja) | 圧力検知装置およびこれを使用した吸気圧測定装置 | |
JP2000275018A (ja) | 歪み計測方法および装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20200703 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200721 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20200721 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20200803 |
|
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: 20200902 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200928 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6771100 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |