| 发明名称 | Gradient sensor of a component of a magnetic field with permanent magnet | ||
| 摘要 | A gradient sensor of a component of a magnetic field comprising at least one elementary sensor comprising a deformable mass (31) equipped with a permanent magnet (32) having a magnetization direction substantially colinear to the direction of the gradient of the component of the magnetic field to be acquired by the sensor. The deformable mass (31) is able to deform under the effect of a force exerted on the magnet by the gradient, the effect of this force being to shift it, by dragging the deformable mass (31), in a direction substantially colinear to the component of the magnetic field for which the sensor has to acquire the gradient. The deformable mass (31) is anchored to a fixed support device (33) in at least two anchoring points (36) substantially opposite relative to the mass (31). The elementary sensor also comprises measuring means (35, 35.1, 35.2, 35.3) of at least one electric variable translating deformation or stress of the deformable mass (31) engendered by the gradient. | ||
| 申请公布号 | US8860403(B2) | 申请公布日期 | 2014.10.14 |
| 申请号 | US201012710675 | 申请日期 | 2010.02.23 |
| 申请人 | Commissariat a l'energie atomique et aux energies alternatives;Institut Polytechnique de Grenoble | 发明人 | Walther Arnaud;Cuchet Robert;Delamare Jerome;Msaed Aline;Albertini Jean-Baptiste |
| 分类号 | G01B7/14;G01R33/022;G01R33/028 | 主分类号 | G01B7/14 |
| 代理机构 | Oblon, Spivak, McClelland, Maier& Neustadt, L.L.P. | 代理人 | Oblon, Spivak, McClelland, Maier& Neustadt, L.L.P. |
| 主权项 | 1. A gradient sensor of a component of a magnetic field comprising at least one elementary sensor comprising a deformable mass equipped with a permanent magnet having a magnetization direction substantially colinear to the direction of the gradient of the component of the magnetic field to be acquired by the sensor, wherein the deformable mass is able to deform under the effect of a force exerted on the magnet by the gradient, the effect of said force being to shift it, by dragging the deformable mass, in a direction substantially colinear to the component of the magnetic field for which the sensor has to acquire the gradient, the deformable mass comprising at least two anchoring points to a fixed support device, the at least two anchoring points being located in two opposite zones of the deformable mass and the permanent magnet being located between two anchoring points, and the elementary sensor also comprising measuring means of at least one electric variable translating deformation or stress of the deformable mass engendered by the gradient. | ||
| 地址 | Paris FR | ||