NO912241D0 - Anordning til paavisning av lengdeforandringer av et medium langs en maalestrekning. - Google Patents
Anordning til paavisning av lengdeforandringer av et medium langs en maalestrekning.Info
- Publication number
- NO912241D0 NO912241D0 NO912241A NO912241A NO912241D0 NO 912241 D0 NO912241 D0 NO 912241D0 NO 912241 A NO912241 A NO 912241A NO 912241 A NO912241 A NO 912241A NO 912241 D0 NO912241 D0 NO 912241D0
- Authority
- NO
- Norway
- Prior art keywords
- scale
- detection
- length change
- medium along
- medium
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4018740A DE4018740A1 (de) | 1990-06-12 | 1990-06-12 | Vorrichtung zum ermitteln von laengenaenderungen eines mediums laengs einer messstrecke |
Publications (3)
Publication Number | Publication Date |
---|---|
NO912241D0 true NO912241D0 (no) | 1991-06-11 |
NO912241L NO912241L (no) | 1991-12-13 |
NO304285B1 NO304285B1 (no) | 1998-11-23 |
Family
ID=6408236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO912241A NO304285B1 (no) | 1990-06-12 | 1991-06-11 | Anordning til pÕvisning av lengdeforandringer av et medium langs en mÕlestrekning |
Country Status (4)
Country | Link |
---|---|
US (1) | US5148017A (no) |
EP (1) | EP0464346A1 (no) |
DE (1) | DE4018740A1 (no) |
NO (1) | NO304285B1 (no) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4132113A1 (de) * | 1991-09-26 | 1993-04-01 | Siemens Ag | Messaufnehmer fuer laengen- oder abstandsaenderungen |
GB9409553D0 (en) * | 1994-04-28 | 1994-06-29 | British Aerospace | Crack detection system |
GB9419031D0 (en) * | 1994-09-21 | 1994-11-09 | Sensor Dynamics Ltd | Apparatus for sensor location |
US5750901A (en) * | 1995-06-07 | 1998-05-12 | Hughes Aircraft Company | Optical fiber apparatus and method for measuring geological strains |
DE19712407A1 (de) * | 1997-03-25 | 1998-10-01 | Gloetzl Ges Fuer Baumestechnik | Wegmeßvorrichtung |
CA2351415A1 (en) * | 1999-09-27 | 2001-04-05 | James I. Mathis | Cable device for detecting and monitoring rock and soil displacement |
DE10348919A1 (de) * | 2003-10-21 | 2005-01-05 | Siemens Ag | Vorrichtung zur Bestimmung der Größenänderungen von Gradientenspulen beim Betrieb |
WO2010123566A1 (en) * | 2009-04-22 | 2010-10-28 | Lxdata Inc. | Pressure sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation |
WO2011012406A1 (de) * | 2009-07-30 | 2011-02-03 | Hottinger Baldwin Messtechnik Gmbh | Vorrichtung und verfahren zum ortsaufgelösten erfassen von bodenbewegungen |
CN102418334B (zh) * | 2011-09-28 | 2013-12-04 | 上海杰蜀光电科技有限公司 | 路基沉降远程自动监测系统及其监测方法 |
US20130188168A1 (en) * | 2012-01-20 | 2013-07-25 | Arthur H. Hartog | Fiber optic formation dimensional change monitoring |
GB2530204A (en) * | 2013-08-02 | 2016-03-16 | Halliburton Energy Services Inc | Acoustic sensor metadata dubbing channel |
CN106052580B (zh) * | 2016-07-13 | 2019-04-16 | 同济大学 | 一种测量隧道掌子面挤出变形的试验装置 |
CN109855545B (zh) * | 2019-04-02 | 2024-03-15 | 中国科学院国家天文台 | 一种基于光波测位移的伸缩机构 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE251198C (no) * | ||||
CH1528465A4 (no) * | 1965-11-05 | 1967-11-15 | ||
US3894427A (en) * | 1971-12-07 | 1975-07-15 | Bergwerksverband Gmbh | Device for measuring changes in converging rock formations in a mining cavity |
CH636698A5 (de) * | 1978-12-21 | 1983-06-15 | Foerderung Forschung Gmbh | Verfahren und einrichtung zum bestimmen von verschiebungen in einem festen medium, insbesondere im boden, im fels und in bauwerken. |
US5026141A (en) * | 1981-08-24 | 1991-06-25 | G2 Systems Corporation | Structural monitoring system using fiber optics |
GB2136113B (en) * | 1983-03-05 | 1986-08-06 | Plessey Co Plc | Improvements relating to optical sensing systems |
US4636638A (en) * | 1984-10-12 | 1987-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Remote optical crack sensing system including fiberoptics |
DD251198A1 (de) * | 1986-07-18 | 1987-11-04 | Kali Veb K | Sonde zur messung der gebirgsaufblaetterung um bergmaennische hohlraeume |
DE3635053C2 (de) * | 1986-10-15 | 1995-09-28 | Strabag Ag | Verfahren zum Überwachen der Verformungen von Bauteilen mittels Lichtwellenleitern sowie Lichtwellenleiter zur Durchführung des Verfahrens und Verfahren zu seiner Herstellung |
US5038618A (en) * | 1986-11-11 | 1991-08-13 | British Aerospace Public Limited Company | Measurement of distortion |
DE3804135A1 (de) * | 1988-02-11 | 1989-08-24 | Felten & Guilleaume Energie | Verfahren zur kontinuierlichen daempfungsmessung von lichtwellenleiter-sensoren mit nur einem zugaenglichen ende |
-
1990
- 1990-06-12 DE DE4018740A patent/DE4018740A1/de active Granted
-
1991
- 1991-05-17 EP EP91108006A patent/EP0464346A1/de not_active Withdrawn
- 1991-05-31 US US07/708,980 patent/US5148017A/en not_active Expired - Lifetime
- 1991-06-11 NO NO912241A patent/NO304285B1/no unknown
Also Published As
Publication number | Publication date |
---|---|
US5148017A (en) | 1992-09-15 |
NO912241L (no) | 1991-12-13 |
NO304285B1 (no) | 1998-11-23 |
DE4018740A1 (de) | 1991-12-19 |
DE4018740C2 (no) | 1992-12-10 |
EP0464346A1 (de) | 1992-01-08 |
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