MD1842C2 - Dispozitiv şi metodă de măsurare a câmpurilor gravitaţionale - Google Patents
Dispozitiv şi metodă de măsurare a câmpurilor gravitaţionaleInfo
- Publication number
- MD1842C2 MD1842C2 MD97-0173A MD970173A MD1842C2 MD 1842 C2 MD1842 C2 MD 1842C2 MD 970173 A MD970173 A MD 970173A MD 1842 C2 MD1842 C2 MD 1842C2
- Authority
- MD
- Moldova
- Prior art keywords
- string
- gravitational field
- measuring
- feedback current
- search coils
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
- G01V7/005—Measuring gravitational fields or waves; Gravimetric prospecting or detecting using a resonating body or device, e.g. string
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Measuring Magnetic Variables (AREA)
- Electrophonic Musical Instruments (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Radiation (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Dispozitivul de măsurare a câmpurilor gravitaţionale include o strună supraconductoare (1) ce se fixează la ambele capete, formând o parte a unui circuit supraconductor închis, cuplat inductiv cu doi solenoizi de inducţie (Ld1, Ld2). Deplasarea strunei ca răspuns la câmpul gravitaţional este sesizată de două convertoare ale fluxului magnetic, fiecare conţinând o bobină de producere a semnalului şi două bobine de măsurare (Lp1, Lp2). Perechea de bobine de măsurare se situează în două plane perpendiculare formând două canale individuale de măsurare. Două braţe ale fiecărui convertor al fluxului se echilibrează astfel încât să transforme amplitudinea oscilaţiilor pentru propriile moduri asimetrice ale strunei în tensiune de ieşire. Tensiunea de ieşire a fiecărui canal se foloseşte pentru a produce distribuţia curentului de reacţie (Iy1, Iy2) paralel, în apropierea imediată a strunei. Ajustând curentul de reacţie, pot fi ajustate timpul de relaxare şi frecvenţa de rezonanţă ale primului mod asimetric al strunei, atunci când modurile simetrice rămân neschimbate, ceea ce perfecţionează sensibilitatea dispozitivului faţă de gradientul gravitaţiei.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ26461094 | 1994-10-04 | ||
PCT/GB1995/002349 WO1996010759A1 (en) | 1994-10-04 | 1995-10-04 | Apparatus for the measurement of gravitational fields |
Publications (3)
Publication Number | Publication Date |
---|---|
MD970173A MD970173A (ro) | 1999-01-31 |
MD1842B2 MD1842B2 (ro) | 2002-01-31 |
MD1842C2 true MD1842C2 (ro) | 2002-09-30 |
Family
ID=19924959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MD97-0173A MD1842C2 (ro) | 1994-10-04 | 1995-10-04 | Dispozitiv şi metodă de măsurare a câmpurilor gravitaţionale |
Country Status (13)
Country | Link |
---|---|
US (1) | US5962781A (ro) |
EP (1) | EP0784802B1 (ro) |
CN (1) | CN1127667C (ro) |
AU (1) | AU687638B2 (ro) |
BR (1) | BR9509241A (ro) |
DE (1) | DE69511276T2 (ro) |
DK (1) | DK0784802T3 (ro) |
GE (1) | GEP20012371B (ro) |
MD (1) | MD1842C2 (ro) |
RU (1) | RU2145429C1 (ro) |
TJ (1) | TJ276B (ro) |
UA (1) | UA45363C2 (ro) |
WO (1) | WO1996010759A1 (ro) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9910932D0 (en) * | 1999-05-11 | 1999-07-07 | Gravitec Instr Ltd | Measurement of magnetic fields |
US6494091B2 (en) | 2001-02-28 | 2002-12-17 | Gilles Couture | Apparatus for measuring a gravitational attraction of the earth |
GB0123270D0 (en) * | 2001-09-27 | 2001-11-21 | Gravitec Instr Ltd | Apparatus for the measurement of gravitational gradients |
CA2478504C (en) * | 2002-03-06 | 2012-10-02 | Lockheed Martin Corporation | Gravity gradiometer and method for calculating a gravity tensor with increased accuracy |
AU2004223403A1 (en) | 2003-03-21 | 2004-10-07 | Mark E. Ander | Gravity techniques for drilling and logging |
US7533068B2 (en) | 2004-12-23 | 2009-05-12 | D-Wave Systems, Inc. | Analog processor comprising quantum devices |
WO2007038820A1 (en) * | 2005-10-06 | 2007-04-12 | Technological Resources Pty Limited | Gravity gradiometer |
DE102006015627B4 (de) * | 2006-03-31 | 2008-03-27 | Innovent E.V. | Verfahren und Vorrichtung zur Bestimmung und Vermessung von Formabweichungen und Welligkeiten an rotationssymmetrischen Teilen |
CA2690958C (en) * | 2006-11-20 | 2015-06-30 | Technological Resources Pty Limited | A gravity gradiometer |
CA2690886A1 (en) * | 2006-11-20 | 2008-05-29 | Technological Resources Pty Limited | A gravity gradiometer |
WO2008061273A1 (en) * | 2006-11-20 | 2008-05-29 | Technological Resources Pty Limited | A gravity gradiometer |
AU2007249127A1 (en) * | 2006-11-20 | 2008-06-05 | Technological Resources Pty. Limited | A gravity gradiometer |
CA2690893A1 (en) * | 2006-11-20 | 2008-05-29 | Technological Resources Pty Limited | A gravity gradiometer |
CA2691032A1 (en) * | 2006-11-20 | 2008-05-29 | Technological Resources Pty Limited | A gravity gradiometer |
WO2008061283A1 (en) * | 2006-11-23 | 2008-05-29 | Technological Resources Pty. Limited | Compensation for unwanted accelerations in a gravity gradiometer |
CA2612860C (en) * | 2006-11-23 | 2015-02-03 | Technological Resources Pty Limited | Gravity gradiometer |
ZA200710808B (en) * | 2006-11-23 | 2009-03-25 | Tech Resources Pty Ltd | Gravity gradiometer |
ZA200710807B (en) | 2006-11-23 | 2009-09-30 | Tech Resources Pty Ltd | Gravity gradiometer |
JP2010510496A (ja) * | 2006-11-23 | 2010-04-02 | テクノロジカル リソーシーズ プロプライエタリー リミテッド | 重力グラジオ・メータ |
EP1949140A4 (en) | 2006-11-23 | 2010-12-08 | Tech Resources Pty Ltd | GRADIOMETER OF GRAVITY |
ZA200710809B (en) * | 2006-11-23 | 2009-03-25 | Tech Resources Pty Ltd | Gravity gradiometer |
US7605600B2 (en) | 2007-04-05 | 2009-10-20 | D-Wave Systems Inc. | Systems, methods and apparatus for anti-symmetric qubit-coupling |
US8375785B2 (en) * | 2007-09-06 | 2013-02-19 | Lockheed Martin Corporation | Gravity gradiometer system |
AP2750A (en) * | 2008-09-25 | 2013-09-30 | Technological Recources Pty Ltd | A gravity gradiometer |
CA2729570C (en) * | 2008-09-25 | 2017-11-21 | Technological Resources Pty Ltd | A detector for detecting a gravity gradient |
GB2464151B (en) * | 2008-10-07 | 2012-09-26 | Gravitec Instr Ltd | Gradiometer for measuring gravitational and magnetic field gradients with improved sensor |
GB2465634B (en) * | 2008-11-28 | 2012-10-03 | Gravitec Instr Ltd | Gravitational gradiometer |
US8359920B2 (en) * | 2009-05-15 | 2013-01-29 | Lockheed Martin Corp. | Gravity sensing instrument |
GB2471662B (en) | 2009-07-03 | 2014-06-11 | Gravitec Instr Ltd | Gravitational gradiometer |
US8738105B2 (en) * | 2010-01-15 | 2014-05-27 | D-Wave Systems Inc. | Systems and methods for superconducting integrated circuts |
US20130055808A1 (en) * | 2010-03-29 | 2013-03-07 | Frank Joachim Van Kann | Gravity gradiometer with correction of external disturbance |
CN101876716B (zh) * | 2010-04-23 | 2012-07-04 | 长安大学 | 一种磁悬浮落体舱***及自由落体式绝对重力仪 |
CN102866431B (zh) | 2012-09-13 | 2015-09-09 | 中国科学院电工研究所 | 测量重力的低温超导装置 |
US10002107B2 (en) | 2014-03-12 | 2018-06-19 | D-Wave Systems Inc. | Systems and methods for removing unwanted interactions in quantum devices |
CN105738962B (zh) * | 2016-02-23 | 2018-06-01 | 武汉天琴引力科技有限公司 | 全张量重力梯度测量装置和测量方法 |
CN105911488B (zh) * | 2016-04-14 | 2019-08-16 | 中国科学院上海微***与信息技术研究所 | 一种超导磁传感器探测线圈及探测器 |
CN106053939B (zh) * | 2016-06-07 | 2019-01-08 | 燕山大学 | 一种在弦上测量边界态的方法 |
AU2017346946B2 (en) | 2016-10-21 | 2023-09-14 | The University Of Western Australia | Intrinsic gravity gradiometer and gravity gradiometry |
CN107219561B (zh) * | 2017-05-03 | 2020-08-25 | 浙江大学 | 一种基于光力效应的高精度重力测量装置 |
US11494683B2 (en) | 2017-12-20 | 2022-11-08 | D-Wave Systems Inc. | Systems and methods for coupling qubits in a quantum processor |
US11675101B2 (en) | 2021-06-18 | 2023-06-13 | Terrasee Tech, LLC | Determining presence and depth of materials in the earth |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3564921A (en) * | 1968-02-02 | 1971-02-23 | Hughes Aircraft Co | Torsionally resonant gravity gradient sensor |
US3722284A (en) * | 1966-02-01 | 1973-03-27 | Hughes Aircraft Co | Detector of dynamic gravitational force gradient fields |
US3769840A (en) * | 1971-10-29 | 1973-11-06 | Hughes Aircraft Co | Method and apparatus for gravity gradiometry |
JPS6050476A (ja) * | 1983-08-30 | 1985-03-20 | Shimadzu Corp | 重力計 |
US4841772A (en) * | 1987-12-03 | 1989-06-27 | University Of Maryland, College Park | Three-axis superconducting gravity gradiometer |
AU4818590A (en) * | 1988-12-20 | 1990-07-10 | Rtz Mining And Exploration Ltd. | Gravity gradiometer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657581A (en) * | 1950-07-24 | 1953-11-03 | Shell Dev | Gravity meter |
US3483753A (en) * | 1967-02-10 | 1969-12-16 | Gen Geophysique Cie | Gravity meter of the vibrating wire type |
FR1599859A (ro) * | 1968-11-22 | 1970-07-20 |
-
1995
- 1995-10-04 GE GEAP19953735A patent/GEP20012371B/en unknown
- 1995-10-04 TJ TJ97000462A patent/TJ276B/xx unknown
- 1995-10-04 AU AU35746/95A patent/AU687638B2/en not_active Ceased
- 1995-10-04 RU RU97107337A patent/RU2145429C1/ru not_active IP Right Cessation
- 1995-10-04 DK DK95932864T patent/DK0784802T3/da active
- 1995-10-04 MD MD97-0173A patent/MD1842C2/ro not_active IP Right Cessation
- 1995-10-04 WO PCT/GB1995/002349 patent/WO1996010759A1/en active IP Right Grant
- 1995-10-04 UA UA97052093A patent/UA45363C2/uk unknown
- 1995-10-04 DE DE69511276T patent/DE69511276T2/de not_active Expired - Lifetime
- 1995-10-04 BR BR9509241A patent/BR9509241A/pt not_active IP Right Cessation
- 1995-10-04 US US08/809,914 patent/US5962781A/en not_active Expired - Lifetime
- 1995-10-04 EP EP95932864A patent/EP0784802B1/en not_active Expired - Lifetime
- 1995-10-04 CN CN95196414A patent/CN1127667C/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3722284A (en) * | 1966-02-01 | 1973-03-27 | Hughes Aircraft Co | Detector of dynamic gravitational force gradient fields |
US3564921A (en) * | 1968-02-02 | 1971-02-23 | Hughes Aircraft Co | Torsionally resonant gravity gradient sensor |
US3769840A (en) * | 1971-10-29 | 1973-11-06 | Hughes Aircraft Co | Method and apparatus for gravity gradiometry |
JPS6050476A (ja) * | 1983-08-30 | 1985-03-20 | Shimadzu Corp | 重力計 |
US4841772A (en) * | 1987-12-03 | 1989-06-27 | University Of Maryland, College Park | Three-axis superconducting gravity gradiometer |
AU4818590A (en) * | 1988-12-20 | 1990-07-10 | Rtz Mining And Exploration Ltd. | Gravity gradiometer |
Non-Patent Citations (1)
Title |
---|
Il Nuovo Cimento, vol. 107B, noiembrie 1992, pag. 1261-1261 * |
Also Published As
Publication number | Publication date |
---|---|
TJ276B (en) | 2000-10-05 |
EP0784802A1 (en) | 1997-07-23 |
GEP20012371B (en) | 2001-02-25 |
AU3574695A (en) | 1996-04-26 |
DE69511276D1 (de) | 1999-09-09 |
DK0784802T3 (da) | 1999-12-06 |
UA45363C2 (uk) | 2002-04-15 |
AU687638B2 (en) | 1998-02-26 |
CN1166877A (zh) | 1997-12-03 |
CN1127667C (zh) | 2003-11-12 |
BR9509241A (pt) | 1997-10-21 |
MD970173A (ro) | 1999-01-31 |
US5962781A (en) | 1999-10-05 |
DE69511276T2 (de) | 2000-03-16 |
WO1996010759A1 (en) | 1996-04-11 |
RU2145429C1 (ru) | 2000-02-10 |
EP0784802B1 (en) | 1999-08-04 |
MD1842B2 (ro) | 2002-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
MM4A | Patent for invention definitely lapsed due to non-payment of fees |