JP2015135326A - 留具のプリロードの光学的測定 - Google Patents
留具のプリロードの光学的測定 Download PDFInfo
- Publication number
- JP2015135326A JP2015135326A JP2014264060A JP2014264060A JP2015135326A JP 2015135326 A JP2015135326 A JP 2015135326A JP 2014264060 A JP2014264060 A JP 2014264060A JP 2014264060 A JP2014264060 A JP 2014264060A JP 2015135326 A JP2015135326 A JP 2015135326A
- Authority
- JP
- Japan
- Prior art keywords
- fastener
- preload
- groove
- filling groove
- light
- 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
- 230000036316 preload Effects 0.000 title claims abstract description 46
- 230000003287 optical effect Effects 0.000 title claims description 23
- 238000005259 measurement Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 12
- 239000011540 sensing material Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000005253 cladding Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 3
- 239000012636 effector Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000275 quality assurance Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000000266 aerosol jet deposition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/065—Arrangements for torque limiters or torque indicators in screw or nut setting machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
-
- 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
- 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
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
- G01L5/166—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using photoelectric means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
- F16B2031/022—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load using an ultrasonic transducer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/08—Testing mechanical properties
- G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
- G01M11/086—Details about the embedment of the optical fiber within the DUT
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49766—Method of mechanical manufacture with testing or indicating torquing threaded assemblage or determining torque herein
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Optical Transform (AREA)
Abstract
【解決手段】留具110は、ヘッド部120と、軸部130とを備える。軸部130には外面及び外面において軸方向に延びる溝140を備える。溝140には光透過性歪み感知材料が充填されており、溝の入力側に光を入射させることによって、軸部の歪みを測定し、留具のプリロードを算出することができる。
【選択図】図1
Description
Claims (15)
- ヘッド部と、
外面及び前記外面において軸方向に延びる溝を有する軸部と、
前記溝に充填された光透過性歪み感知材料と、を備える留具。 - 前記軸部は、ねじ部及びねじ無し部を含み、前記充填溝は、ねじ無し部のみにおいて軸方向に延びる、請求項1に記載の留具。
- 前記充填溝の幅は、100ミクロン未満である、請求項1又は2に記載の留具。
- 前記光透過性歪み感知材料は、軸部に接着されている、請求項1〜3のいずれかに記載の留具。
- 前記光透過性材料は、光学コア、及び、前記軸部と前記コアとの間のクラッド、を含む、請求項1〜4のいずれかに記載の留具。
- 前記光透過性材料は、前記コアの外面に設けられたクラッドをさらに含む、請求項5に記載の留具。
- 前記充填溝は導波ガイドを形成している、請求項1〜6のいずれかに記載の留具。
- 前記充填溝は、軸方向の歪みを測定するためにU字形とされている、請求項1〜7のいずれかに記載の留具。
- 前記充填溝は、連結部として構成された軸方向に延びる部分と、これら軸方向に延びる部分の間で前記軸部に固着された少なくとも1つの部分と、を含む、請求項1〜8のいずれかに記載の留具。
- 前記充填溝は、軸方向に延びる第1部分と、膨出状の第2部分と、軸方向に延びる第3部分と、を含む、請求項1に記載の留具。
- 前記充填溝の入力ポートに光を入射させつつ留具にトルク負荷することと、
前記充填溝の出力ポートにおける光の周波数を測定することと、
測定された前記周波数の関数として前記留具のプリロードを算出することと、
を含む、請求項1〜10のいずれか1つに記載の留具の取り付け方法。 - 前記プリロードが目標値に到達するまで前記留具にトルク負荷することをさらに含む、請求項11に記載の方法。
- 歪み感知光学材料が充填された溝を有する軸部を含む留具を配置することと、
前記留具のプリロードを測定しつつ留具を締めることと、
測定されたプリロードが目標値に到達すると前記留具の締め付けを停止することと、を含む方法であって、
前記プリロードを測定することは、前記溝の入力部に光を入射させることと、前記充填溝の出力部における光の周波数を測定することと、前記測定された周波数からプリロードを算出すること、とを含む、方法。 - 前記留具のプリロードの測定は、航空機に対する取り付け中に行われる、請求項13に記載の方法。
- 前記留具のプリロードの測定は、航空機の検査モニタリング中に行われる、請求項13に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/157,313 | 2014-01-16 | ||
US14/157,313 US9492901B2 (en) | 2014-01-16 | 2014-01-16 | Optical measurement of fastener preload |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015135326A true JP2015135326A (ja) | 2015-07-27 |
JP6276684B2 JP6276684B2 (ja) | 2018-02-07 |
Family
ID=51743347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014264060A Active JP6276684B2 (ja) | 2014-01-16 | 2014-12-26 | 留具のプリロードの光学的測定 |
Country Status (8)
Country | Link |
---|---|
US (1) | US9492901B2 (ja) |
EP (1) | EP2899522B1 (ja) |
JP (1) | JP6276684B2 (ja) |
KR (1) | KR102110620B1 (ja) |
CN (1) | CN104791351B (ja) |
AU (1) | AU2014246684B2 (ja) |
BR (1) | BR102014030075B1 (ja) |
CA (1) | CA2869179C (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI510720B (zh) * | 2013-06-19 | 2015-12-01 | Jinn Her Entpr Co Ltd | 可同步預拉緊光纖光柵與螺栓的感測螺絲裝置 |
WO2016159245A1 (ja) * | 2015-03-31 | 2016-10-06 | 株式会社NejiLaw | 通電路付部材及び通電路のパターニング方法、部材変化計測方法 |
CN105403337B (zh) * | 2015-11-02 | 2018-11-06 | 武汉理工大学 | 一种带预拉伸装置的光纤光栅螺栓应力传感器 |
US10240627B2 (en) * | 2017-01-19 | 2019-03-26 | Wipro Limited | Smart stud-nut assembly |
WO2019123038A1 (en) * | 2017-12-19 | 2019-06-27 | Politecnico Di Torino | Sensorized device for fastening climbing holds provided with a triaxial load cell |
CN108204876B (zh) * | 2017-12-25 | 2024-04-16 | 烟台大学 | 一种螺栓装配过程中预紧力实时检测装置与方法 |
KR102033845B1 (ko) * | 2018-01-11 | 2019-10-17 | 한양대학교 에리카산학협력단 | 외력 센서 및 그 제조 방법 |
EP3546906B1 (de) * | 2018-03-29 | 2020-11-11 | SMS Group GmbH | Temperatursensoranordnung, temperatursensorbauteil für eine metallurgische anlage und verfahren zum herstellen eines solchen |
KR102070993B1 (ko) * | 2018-04-18 | 2020-01-29 | 공주대학교 산학협력단 | 볼트 축력 측정장치 및 방법 |
CN109612626A (zh) * | 2019-01-03 | 2019-04-12 | 武汉科技大学 | 一种螺栓轴向力传感器 |
CN110849517B (zh) * | 2019-11-20 | 2021-02-12 | 哈尔滨工业大学 | 基于声弹效应的大型高速回转装备装配紧固力测量方法 |
USD959257S1 (en) * | 2020-02-07 | 2022-08-02 | Norgas Metering Technologies, Inc. | Thread insert |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5945665A (en) * | 1997-05-09 | 1999-08-31 | Cidra Corporation | Bolt, stud or fastener having an embedded fiber optic Bragg Grating sensor for sensing tensioning strain |
JP2007178232A (ja) * | 2005-12-27 | 2007-07-12 | Honda Motor Co Ltd | 締結具の剪断荷重測定方法 |
JP2008545124A (ja) * | 2005-06-29 | 2008-12-11 | ホッティンゲル・バルドヴィン・メステクニーク・ゲゼルシヤフト・ミト・ベシュレンクテル・ハフツング | 光学式ひずみゲージ |
EP2056086A1 (de) * | 2007-11-05 | 2009-05-06 | Technische Universität München | Kraft-Momenten-Sensor |
DE102010055991A1 (de) * | 2010-12-23 | 2012-06-28 | Hochschule Offenburg | Messschraube zur Ermittlung mehrachsiger Schraubenbelastungen |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2600029A (en) * | 1946-11-12 | 1952-06-10 | Gerotor May Corp | Stress indicating bolt or stud |
US3224316A (en) * | 1963-09-06 | 1965-12-21 | Detroit Testing Lab Inc | Stress indicating mechanical fastening device |
US4553124A (en) * | 1983-09-16 | 1985-11-12 | Carron & Company | Strain gauge transducer assembly |
US5044204A (en) * | 1990-07-09 | 1991-09-03 | Teledyne Industries, Inc. | Device with strain gaged threaded portion |
US5783751A (en) * | 1996-12-31 | 1998-07-21 | Industrial Technology Research Institute | Cutting force sensor in the form of a turret locking screw |
US6101884A (en) | 1997-04-10 | 2000-08-15 | Mcdonnell Douglas Corporation | Fastener equipped with an untethered fiber-optic strain gauge and related method of using the same |
CN1153054C (zh) * | 1998-12-04 | 2004-06-09 | 塞德拉公司 | 布拉格光栅压力传感器 |
US6250863B1 (en) * | 2000-04-17 | 2001-06-26 | Boris Kamentser | Washer having stressed and unstressed strain gauges |
US7441462B2 (en) * | 2001-01-29 | 2008-10-28 | Innovation Plus, Llc | Load indicating member with identifying element |
JP4318113B2 (ja) | 2003-06-20 | 2009-08-19 | 株式会社日立製作所 | ボルトゲージ |
US7293466B2 (en) * | 2005-07-19 | 2007-11-13 | Hitachi, Ltd. | Bolt with function of measuring strain |
CN1844872A (zh) * | 2005-12-29 | 2006-10-11 | 南京航空航天大学 | 旋翼分布载荷光纤光栅传感测量*** |
FR2901548B1 (fr) | 2006-05-24 | 2008-07-25 | Lemantec Internat Sarl | Organe de levage a moyens de mesure de charge et /ou de contraintes |
US7412898B1 (en) * | 2006-07-28 | 2008-08-19 | Disney Enterprises, Inc. | Load sensing system including RFID tagged fasteners |
US20080253858A1 (en) * | 2007-04-12 | 2008-10-16 | Chih-Ching Hsieh | Screwing device with function of twisting force measurement |
JP2010053927A (ja) * | 2008-08-27 | 2010-03-11 | Asahi Electric Works Ltd | 締め付け装置およびその軸力検出システム |
-
2014
- 2014-01-16 US US14/157,313 patent/US9492901B2/en active Active
- 2014-10-10 KR KR1020140136428A patent/KR102110620B1/ko active IP Right Grant
- 2014-10-13 AU AU2014246684A patent/AU2014246684B2/en active Active
- 2014-10-20 EP EP14189467.5A patent/EP2899522B1/en active Active
- 2014-10-30 CA CA2869179A patent/CA2869179C/en active Active
- 2014-12-01 BR BR102014030075-9A patent/BR102014030075B1/pt active IP Right Grant
- 2014-12-19 CN CN201410798317.4A patent/CN104791351B/zh active Active
- 2014-12-26 JP JP2014264060A patent/JP6276684B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5945665A (en) * | 1997-05-09 | 1999-08-31 | Cidra Corporation | Bolt, stud or fastener having an embedded fiber optic Bragg Grating sensor for sensing tensioning strain |
JP2008545124A (ja) * | 2005-06-29 | 2008-12-11 | ホッティンゲル・バルドヴィン・メステクニーク・ゲゼルシヤフト・ミト・ベシュレンクテル・ハフツング | 光学式ひずみゲージ |
JP2007178232A (ja) * | 2005-12-27 | 2007-07-12 | Honda Motor Co Ltd | 締結具の剪断荷重測定方法 |
EP2056086A1 (de) * | 2007-11-05 | 2009-05-06 | Technische Universität München | Kraft-Momenten-Sensor |
DE102010055991A1 (de) * | 2010-12-23 | 2012-06-28 | Hochschule Offenburg | Messschraube zur Ermittlung mehrachsiger Schraubenbelastungen |
Also Published As
Publication number | Publication date |
---|---|
CN104791351A (zh) | 2015-07-22 |
US20150198195A1 (en) | 2015-07-16 |
KR102110620B1 (ko) | 2020-05-14 |
CA2869179C (en) | 2017-06-06 |
JP6276684B2 (ja) | 2018-02-07 |
CN104791351B (zh) | 2017-11-21 |
US9492901B2 (en) | 2016-11-15 |
BR102014030075A2 (pt) | 2015-09-15 |
AU2014246684B2 (en) | 2017-08-24 |
EP2899522B1 (en) | 2018-09-05 |
AU2014246684A1 (en) | 2015-07-30 |
BR102014030075B1 (pt) | 2020-12-15 |
EP2899522A2 (en) | 2015-07-29 |
CA2869179A1 (en) | 2015-07-16 |
KR20150085771A (ko) | 2015-07-24 |
EP2899522A3 (en) | 2015-08-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6276684B2 (ja) | 留具のプリロードの光学的測定 | |
US8433160B2 (en) | Smart fastener and smart insert for a fastener using fiber Bragg gratings to measure strain and temperature | |
US5321257A (en) | Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide | |
US7628079B2 (en) | Method for measuring shear load of fastening tool | |
JP5965744B2 (ja) | 光ファイバセンサのための方法およびシステム | |
JP6301963B2 (ja) | 歪みセンサ及び歪みセンサの設置方法 | |
CN104279973B (zh) | 一种大量程光纤光栅应变传感器 | |
CN105241598B (zh) | 发动机转子预紧力测量方法及*** | |
KR20110108484A (ko) | 변형률 측정 센서를 이용한 구조물의 비틀림 측정 방법 및 시스템 | |
JP2002162211A (ja) | 歪み計測装置及びその設置方法 | |
US20150160082A1 (en) | System and method for measuring torque | |
WO2015178323A1 (ja) | 圧力センサ | |
EP3173758B1 (en) | System and method for tactile sensing using thin film optical sensing networks | |
JP6736044B2 (ja) | 歪みセンサ及び歪みセンサの取付治具 | |
CN113960328A (zh) | 感测装置及其感测二维流速、二维加速度的方法 | |
KR100379746B1 (ko) | 구조물 변형 측정 장치 및 구조물 변형 측정방법 | |
KR101116160B1 (ko) | 광섬유 센서 탐촉자 패키징 및 그 패키징이 구비된 광섬유 센서 탐촉자 | |
KR20150142903A (ko) | 힘의 3차원 벡터 분석 시스템 | |
US11835404B1 (en) | Thinline towed array tension sensor | |
EP2921817A1 (en) | Real-time shape measuring method and system | |
US6718078B2 (en) | High sensitivity fiber optic rotation sensor | |
JP2011102695A (ja) | 重量計測素子及び重量計 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20161215 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20170920 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170926 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20171213 |
|
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: 20171226 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20180112 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6276684 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 |