CA2233598C - Appareil de mesure de champs gravitationnels - Google Patents
Appareil de mesure de champs gravitationnels Download PDFInfo
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- CA2233598C CA2233598C CA002233598A CA2233598A CA2233598C CA 2233598 C CA2233598 C CA 2233598C CA 002233598 A CA002233598 A CA 002233598A CA 2233598 A CA2233598 A CA 2233598A CA 2233598 C CA2233598 C CA 2233598C
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- 238000005259 measurement Methods 0.000 title claims abstract description 29
- 230000005484 gravity Effects 0.000 claims abstract description 47
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- 238000000034 method Methods 0.000 claims description 19
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- 229910052758 niobium Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Measuring Magnetic Variables (AREA)
Abstract
Un appareil de mesure de champs gravitationnels comprend un fil supraconducteur (1) fixé à ses deux extrémités et faisant partie d'une boucle supraconductrice fermée couplée par induction à deux solénoïdes d'attaque (Ld1, Ld2). Le déplacement du fil dû à un champ gravitationnel est détecté par deux transformateurs de flux magnétiques dont chacun comporte une bobine de signal et deux bobines de détection (Lp1, Lp2). Des paires de bobines de détection sont disposées dans deux plans perpendiculaires fournissant deux canaux indépendants de mesure. Les deux bras de chaque transformateur de flux sont équilibrés de façon à ne convertir que les amplitudes des modes naturels antisymétriques du fil en une tension de sortie. La tension de sortie de chaque canal sert à produire une répartition de courant de rétroaction (I1, I2) à proximité du fil et parallèle à celui-ci. On obtient par le réglage de ce courant de rétroaction celui du temps de relâchement efficace et de la fréquence de résonance du premier mode antisymétrique du fil, sans modifier les modes symétriques, ce qui accroît la sensibilité de l'appareil aux gradients de gravité.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ264610 | 1994-10-04 | ||
| NZ26461094 | 1994-10-04 | ||
| PCT/GB1995/002349 WO1996010759A1 (fr) | 1994-10-04 | 1995-10-04 | Appareil de mesure de champs gravitationnels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2233598A1 CA2233598A1 (fr) | 1996-04-11 |
| CA2233598C true CA2233598C (fr) | 2006-04-04 |
Family
ID=36143345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002233598A Expired - Fee Related CA2233598C (fr) | 1994-10-04 | 1995-10-04 | Appareil de mesure de champs gravitationnels |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2233598C (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010061183A3 (fr) * | 2008-11-28 | 2011-04-21 | Gravitec Instruments Limited | Gradiomètre de gravité |
| GB2508547A (en) * | 2009-07-03 | 2014-06-04 | Gravitec Instr Ltd | Gravitational Gradiometer for measuring quasi-static gravity gradients with control means for stiffening the ribbon |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2471662B (en) * | 2009-07-03 | 2014-06-11 | Gravitec Instr Ltd | Gravitational gradiometer |
| CN112882119B (zh) * | 2020-12-09 | 2024-12-24 | 四川航天计量测试研究所 | 一种微重力环境下微小质量测量装置及方法 |
| CN116754369B (zh) * | 2023-06-05 | 2025-12-02 | 大连理工大学 | 一种微重力静力触探测试系统及使用方法 |
-
1995
- 1995-10-04 CA CA002233598A patent/CA2233598C/fr not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010061183A3 (fr) * | 2008-11-28 | 2011-04-21 | Gravitec Instruments Limited | Gradiomètre de gravité |
| US8714010B2 (en) | 2008-11-28 | 2014-05-06 | Gravitec Instruments Limited | Gravitational gradiometer |
| RU2517954C2 (ru) * | 2008-11-28 | 2014-06-10 | Гравитек Инструментс Лимитед | Гравитационный градиентометр |
| AU2009321348B2 (en) * | 2008-11-28 | 2015-01-29 | Gravitec Instruments Limited | Gravitational gradiometer |
| GB2508547A (en) * | 2009-07-03 | 2014-06-04 | Gravitec Instr Ltd | Gravitational Gradiometer for measuring quasi-static gravity gradients with control means for stiffening the ribbon |
| GB2508547B (en) * | 2009-07-03 | 2014-07-23 | Gravitec Instr Ltd | Gravitational gradiometer |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2233598A1 (fr) | 1996-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20131004 |