DE69802153T2 - Vorrichtung zur Messung eines Risses in einem Werkstück - Google Patents
Vorrichtung zur Messung eines Risses in einem WerkstückInfo
- Publication number
- DE69802153T2 DE69802153T2 DE69802153T DE69802153T DE69802153T2 DE 69802153 T2 DE69802153 T2 DE 69802153T2 DE 69802153 T DE69802153 T DE 69802153T DE 69802153 T DE69802153 T DE 69802153T DE 69802153 T2 DE69802153 T2 DE 69802153T2
- Authority
- DE
- Germany
- Prior art keywords
- crack
- workpiece
- measuring
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
-
- 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
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0083—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by measuring variation of impedance, e.g. resistance, capacitance, induction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9716216.8A GB9716216D0 (en) | 1997-07-31 | 1997-07-31 | Measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69802153D1 DE69802153D1 (de) | 2001-11-29 |
DE69802153T2 true DE69802153T2 (de) | 2002-07-18 |
Family
ID=10816776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69802153T Expired - Fee Related DE69802153T2 (de) | 1997-07-31 | 1998-07-21 | Vorrichtung zur Messung eines Risses in einem Werkstück |
Country Status (8)
Country | Link |
---|---|
US (1) | US6172511B1 (de) |
EP (1) | EP0895073B1 (de) |
JP (1) | JPH1194787A (de) |
DE (1) | DE69802153T2 (de) |
DK (1) | DK0895073T3 (de) |
ES (1) | ES2165126T3 (de) |
GB (1) | GB9716216D0 (de) |
PT (1) | PT895073E (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20010673A1 (it) * | 2001-07-10 | 2003-01-10 | Uni Di Trento Dipartiment O Di | Vetro con funzionalita' di sensore di frattura, di sforzo e deformazione e relativo metodo di realizzazione. |
US7106215B2 (en) * | 2004-02-10 | 2006-09-12 | Marishak Jr Frank Ted | Device for monitoring the integrity of spacecraft thermal protection tiles |
JP4517073B2 (ja) * | 2004-11-30 | 2010-08-04 | 独立行政法人産業技術総合研究所 | 損傷測定方法 |
US7185545B2 (en) * | 2004-12-29 | 2007-03-06 | General Electric Company | Instrumentation and method for monitoring change in electric potential to detect crack growth |
US7250311B2 (en) | 2005-02-23 | 2007-07-31 | International Business Machines Corporation | Wirebond crack sensor for low-k die |
EP1979731A1 (de) | 2006-02-03 | 2008-10-15 | BAE Systems PLC | Verbesserungen in bezug auf beschädigungssensoren |
US9040865B2 (en) | 2007-02-27 | 2015-05-26 | Exxonmobil Upstream Research Company | Corrosion resistant alloy weldments in carbon steel structures and pipelines to accommodate high axial plastic strains |
WO2008115323A1 (en) * | 2007-03-20 | 2008-09-25 | Exxonmobil Upstream Research Company | A framework to determine the capacity of a structure |
US8229681B2 (en) * | 2007-03-20 | 2012-07-24 | Exxonmobil Upstream Research Company | Method to measure tearing resistance |
DE102010008397B4 (de) * | 2010-02-12 | 2011-12-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sensorsystem zur Bestimmung der Ermüdung an metallischen Bauteilen |
WO2018030997A1 (en) * | 2016-08-09 | 2018-02-15 | Fmc Technologies, Inc. | Remotely accessible fatigue accumulation sensor and methods of accessing and using such a sensor |
US11126764B2 (en) * | 2018-10-01 | 2021-09-21 | Palo Alto Research Center Incorporated | Physics-based model particle-filtering framework for predicting RUL using resistance measurements |
CN111337363B (zh) * | 2020-03-30 | 2022-04-05 | 哈尔滨工程大学 | 一种热电材料性能测试的装置和方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4255974A (en) * | 1979-06-14 | 1981-03-17 | Battelle Development Corporation | Adherent crack gauge |
US5227731A (en) * | 1991-05-24 | 1993-07-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of continuously determining crack length |
US5319982A (en) * | 1992-07-01 | 1994-06-14 | Tensiodyne Scientific, Inc. | Device for monitoring the fatigue life of a structural member and a method of making same |
US5528155A (en) * | 1994-04-29 | 1996-06-18 | Massachusetts Institute Of Technology | Sensor for measuring material properties |
US5680055A (en) * | 1995-07-19 | 1997-10-21 | Marquette University | Method and apparatus to sense changes in the state of a resin bed |
US5661406A (en) * | 1995-09-27 | 1997-08-26 | Leak Location Services, Inc. | Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques |
-
1997
- 1997-07-31 GB GBGB9716216.8A patent/GB9716216D0/en active Pending
-
1998
- 1998-07-21 PT PT98305791T patent/PT895073E/pt unknown
- 1998-07-21 ES ES98305791T patent/ES2165126T3/es not_active Expired - Lifetime
- 1998-07-21 DK DK98305791T patent/DK0895073T3/da active
- 1998-07-21 DE DE69802153T patent/DE69802153T2/de not_active Expired - Fee Related
- 1998-07-21 EP EP98305791A patent/EP0895073B1/de not_active Expired - Lifetime
- 1998-07-29 US US09/124,626 patent/US6172511B1/en not_active Expired - Fee Related
- 1998-07-31 JP JP10217374A patent/JPH1194787A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB9716216D0 (en) | 1997-10-08 |
EP0895073A2 (de) | 1999-02-03 |
DE69802153D1 (de) | 2001-11-29 |
DK0895073T3 (da) | 2002-02-18 |
PT895073E (pt) | 2002-04-29 |
ES2165126T3 (es) | 2002-03-01 |
US6172511B1 (en) | 2001-01-09 |
EP0895073B1 (de) | 2001-10-24 |
JPH1194787A (ja) | 1999-04-09 |
EP0895073A3 (de) | 1999-05-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE29810858U1 (de) | Vorrichtung zum Bestimmen eines Analyten in einem Körperfluid | |
DE69733124D1 (de) | Vorrichtung und verfahren zur messung der flächenkontur | |
DE59804879D1 (de) | Verfahren und vorrichtung zur messung des winkels eines ersten drehbaren körpers | |
DE60036163D1 (de) | System zum Einteilen von Gegenständen und Vorrichtung zur Messung der Abmessungen eines Gegenstandes | |
DE59511082D1 (de) | Anordnung zur Messung des Füllstands in einem Behälter | |
DE69605643D1 (de) | Verfahren und vorrichtung zur messung eines zonenflusses in einem plasma | |
DE59610354D1 (de) | Verfahren und vorrichtung zur winkelmessung bei einem drehbaren körper | |
DE69431497T2 (de) | Verfahren und Vorrichtung zur Messung eines streuenden Mediums | |
DE69914223D1 (de) | Vorrichtung zur durchführung von operationen an einem an einer unzugänglichen stelle gelegenen werkstück | |
DE69820601D1 (de) | Verfahren und vorrichtung zur messung und ortung des zahnapex | |
DE69502707T2 (de) | Vorrichtung zur messung eines hautflecks | |
DE69802153D1 (de) | Vorrichtung zur Messung eines Risses in einem Werkstück | |
DE50105843D1 (de) | Verfahren und vorrichtung zur messung der laufzeit einer task in einem echtzeitsystem | |
DE69906310D1 (de) | Verfahren und vorrichtung zur messung eines flüssigkeitströpfchen | |
ATE261119T1 (de) | Verfahren und vorrichtung zur messung der oktanzahl | |
DE69716187T2 (de) | Verfahren und Vorrichtung zur Messung des Rauschanteils in einem übertragenen Sprachsignal | |
DE69825244D1 (de) | Vorrichtung zur auffindung eines körpers in einem trüben medium | |
DE69812935D1 (de) | Verfahren und vorrichtung zur messung des relativen anteils von uran und plutonium in einem körper | |
DE69910189D1 (de) | Vorrichtung zur befestigung eines messwertaufnehmers an einem wälzlager | |
DE69807844T2 (de) | Gerät zur messung des sauerstottgehaltes im einem gas | |
DE59405037D1 (de) | Vorrichtung und verfahren zur messung einer dreidimensionalen oberflächenstruktur | |
DE69941624D1 (de) | Verfahren und vorrichtung zum messen eines biegewinkels | |
ATA161099A (de) | Verfahren und vorrichtung zum vermessen eines bohrlochs | |
DE69920918D1 (de) | Vorrichtung zum Messen von Gasen mit einem Geruch | |
DE29722450U1 (de) | Vorrichtung zur Überprüfung der geometrischen Genauigkeit eines Koordinatenmeßgerätes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |