公开(公告)号：WO2007095971A1

公开(公告)日：2007-08-30

申请号：PCT/EP2006/002599

申请日：2006-02-24

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ,  FERMON, Claude ,  PANNETIER, Myriam ,  BIZIERE, Nicolas ,  VACHER, François ,  SOLLIER, Thierry

Inventor： FERMON, Claude ,  PANNETIER, Myriam ,  BIZIERE, Nicolas ,  VACHER, François ,  SOLLIER, Thierry

IPC: G01N27/90

CPC classification number: G01N27/9046

Abstract: A device for non destructive evaluation of defects in a metallic object (2) by eddy currents, comprises a field emitter (3) for emitting an alternating electromagnetic field at a first frequency fi in the neighbourhood of the metallic object (2), and a magnetoresistive sensor (1) for detecting a response signal constituted by a return electromagnetic field which is re-emitted by eddy currents induced by the alternating electromagnetic field in the metallic object (2). The device further comprises: a driving circuit (230) for driving the magnetoresistive sensor (1) by a current at a second frequency fc which is different from the first frequency fi, so that the magnetoresistive sensor (1) acts as an in situ modulator; a detector for detecting a response signal between the terminals of the magnetoresistive sensor (1); a filter for filtering the response signal detected by the magnetoresistive sensor (1) to keep either the frequency sum (fi+fc) of the first and second frequencies or the frequency difference (fi-fc) of the first and second frequencies, and a processor for processing the filtered response signal and extract eddy current information on defects in the metallic object (2).

Abstract translation: 用于通过涡流对金属物体（2）中的缺陷进行非破坏性评估的装置包括用于在金属物体（2）附近以第一频率f 1发射交变电磁场的场发射器（3），以及 磁阻传感器（1），用于检测由金属物体（2）中的交变电磁场引起的涡流重新发射的返回电磁场构成的响应信号。 该装置还包括：用于以与第一频率fi不同的第二频率fc的电流驱动磁阻传感器（1）的驱动电路（230），使得磁阻传感器（1）充当原位调制器 ; 用于检测所述磁阻传感器（1）的端子之间的响应信号的检测器; 滤波器，用于对由磁阻传感器（1）检测到的响应信号进行滤波，以保持第一和第二频率的频率和（fi + fc）或第一和第二频率的频率差（fi-fc），以及 处理器，用于处理滤波的响应信号，并提取关于金属物体（2）中的缺陷的涡流信息。

公开(公告)号：WO2006011013A3

公开(公告)日：2006-02-02

申请号：PCT/IB2005/001951

申请日：2005-07-11

Applicant: AXALTO SA ,  COMMISSARIAT ENERGIE ATOMIQUE ,  BONVALOT, Béatrice ,  FERMON, Claude ,  PANNETIER, Myriam

Inventor： BONVALOT, Béatrice ,  FERMON, Claude ,  PANNETIER, Myriam

IPC: H01L23/58 ,  G06K19/073 ,  G11C7/24

Abstract: For protecting a circuit (1) against a mechanical or electromagnetic attack, an active protection device attached to the circuit comprises: - at least one generator (13, 14) for generating a magnetic field, - at least one magnetic sensor S1, S2, S3, S4 for measuring a value of the magnetic field, - an integrity circuit connected to the at least one magnetic sensor S1, S2, S3, S4 and to the circuit (1). The integrity circuit activates a reaction procedure in the circuit if the measured value of the magnetic field made by the magnetic sensor is out of a values domain, the values domain being correlated to the generated magnetic field.

公开(公告)号：WO2005106953A1

公开(公告)日：2005-11-10

申请号：PCT/EP2005/004636

申请日：2005-04-27

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ,  AXALTO S.A. ,  PANNETIER, Myriam ,  FERMON, Claude ,  BONVALOT, Béatrice

Inventor： PANNETIER, Myriam ,  FERMON, Claude ,  BONVALOT, Béatrice

IPC: H01L23/552

CPC classification number: G06K19/07735 ,  G06K19/07743 ,  H01L23/49855 ,  H01L23/552 ,  H01L24/45 ,  H01L24/48 ,  H01L2224/32014 ,  H01L2224/32225 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48463 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/01013 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01057 ,  H01L2924/01077 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/16152 ,  H01L2924/181 ,  H01L2924/3025 ,  H01L2224/05599 ,  H01L2924/00

Abstract: A protected electrical device having at least one electrical sub-assembly (1) to be protected comprises on at least one (11) of upper and lower surfaces (11, 12), at least a screening layer (2) against the electromagnetic (EM) and radiofrequency (RF) fields emitted by the electrical sub-assembly (1). The screening layer (2) comprises at least a first layer made of soft magnetic material with a high relative permeability (µr) larger than 500. The screening layer (2) is placed on substantially the whole surface of said at least one (11) of the upper and lower surfaces (11, 12), except on predetermined regions (1a) of limited area, the electrical connections (8, 9) with external devices being located on at least some of the predetermined regions of limited area.

Abstract translation: 具有至少一个待保护的电子组件（1）的被保护的电气装置包括在至少一个上表面和下表面（11,12）上，至少一个抵抗电磁（EM）的屏蔽层（2） ）和电子组件（1）发射的射频（RF）场。 所述屏蔽层（2）至少包括由相对磁导率（μr）大于500的高磁性材料制成的第一层。所述屏蔽层（2）被放置在所述至少一个（11）的整个表面上， 除了有限区域的预定区域（1a）之外，上表面和下表面（11,12）的外部设备的电连接（8,9）位于限定区域的至少某些预定区域上。

公开(公告)号：WO2004068158A1

公开(公告)日：2004-08-12

申请号：PCT/EP2003/001518

申请日：2003-01-31

Applicant: COMMISSARIAT ENERGIE ATOMIQUE ,  4-D NEUROIMAGING OY ,  PANNETIER, Myriam ,  FERMON, Claude ,  SIMOLA, Juha

Inventor： PANNETIER, Myriam ,  FERMON, Claude ,  SIMOLA, Juha

IPC: G01R33/035

CPC classification number: G01R33/035

Abstract: The device for sensing a magnetic field comprises a closed superconducting pick-up loop (1) having a path width (d) etched out of a single layer superconducting thin film and provided with a constriction (15) having a width (w) of narrow dimension smaller than the path width (d). The closed superconducting pick-up loop (1) constitutes a flux-to-field transformer (FFDT). At least one magnetoresistive element (2) is placed on top of or below the superconducting thin film, is isolated from the superconducting thin film by a thin insulating layer and is located so that an active part of the magnetoresistive element (2) is at the location of the constriction (15) and has a width equal to or less than the width of the constriction (15). The active part of the magnetoresistive element (2) is oriented so that the bias current in this active part is directed essentially along the constriction (15), orthogonally to the width of narrow dimension.

Abstract translation: 用于感测磁场的装置包括闭合的超导拾波回路（1），其具有从单层超导薄膜蚀刻出的路径宽度（d），并设置有宽度（w）窄的收缩部（15） 尺寸小于路径宽度（d）。 闭合超导拾波回路（1）构成磁通 - 磁场变压器（FFDT）。 至少一个磁阻元件（2）被放置在超导薄膜的顶部或下方，通过薄的绝缘层与超导薄膜隔离，并且被定位成使得磁阻元件（2）的有源部分位于 狭缝（15）的位置并且具有等于或小于收缩部（15）的宽度的宽度。 磁阻元件（2）的有源部分被定向成使得该有源部分中的偏置电流基本上沿狭缝（15）指向，与窄尺寸的宽度正交。

公开(公告)号：WO2006011013A2

公开(公告)日：2006-02-02

申请号：PCT/IB2005001951

申请日：2005-07-11

Applicant: AXALTO SA ,  COMMISSARIAT ENERGIE ATOMIQUE ,  BONVALOT BEATRICE ,  FERMON CLAUDE ,  PANNETIER MYRIAM

Inventor： BONVALOT BEATRICE ,  FERMON CLAUDE ,  PANNETIER MYRIAM

IPC: G06K19/073 ,  G11C7/24 ,  H01L23/58

CPC classification number: G06K19/07372 ,  G06K19/073 ,  G11C16/225 ,  H01L23/576 ,  H01L27/0605 ,  H01L27/105 ,  H01L27/1052 ,  H01L2924/0002 ,  H01L2924/00

Abstract: For protecting a circuit (1) against a mechanical or electromagnetic attack, an active protection device attached to the circuit comprises: - at least one generator (13, 14) for generating a magnetic field, - at least one magnetic sensor S1, S2, S3, S4 for measuring a value of the magnetic field, - an integrity circuit connected to the at least one magnetic sensor S1, S2, S3, S4 and to the circuit (1). The integrity circuit activates a reaction procedure in the circuit if the measured value of the magnetic field made by the magnetic sensor is out of a values domain, the values domain being correlated to the generated magnetic field.

Abstract translation: 为了防止电路（1）受到机械或电磁攻击，连接到电路的主动保护装置包括： - 至少一个用于产生磁场的发生器（13,14）， - 至少一个磁性传感器S1，S2， S3，S4，用于测量磁场的值; - 连接到至少一个磁性传感器S1，S2，S3，S4和电路（1）的完整性电路。 如果由磁传感器产生的磁场的测量值超出值域，则完整性电路激活电路中的反应过程，该值域与产生的磁场相关。

公开(公告)号：WO2006042839A1

公开(公告)日：2006-04-27

申请号：PCT/EP2005/055304

申请日：2005-10-17

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ,  BIZIERE, Nicolas ,  FERMON, Claude ,  PANNETIER, Myriam

Inventor： BIZIERE, Nicolas ,  FERMON, Claude ,  PANNETIER, Myriam

IPC: G01R33/09

CPC classification number: G01R33/09

Abstract: The device for measuring magnetic field by using a magnetoresistive sensor comprises at least one magnetoresistive sensor (5) , a module (50) for measuring the resistance of the magnetoresistive sensor (5) , a generator module (40, 6) for generating an additional magnetic field in the space containing the magnetoresistive sensor (5) , and a control unit (60) firstly for selectively controlling the generator module (40, 6) to apply an additional magnetic field pulse possessing a first value with first polarity that is positive or negative and magnitude that is sufficient to saturate the magnetoresistive sensor (5) , and secondly for selectively controlling measurement of the resistance of the magnetoresistive sensor (5) by the module (50) for measuring resistance.

Abstract translation: 用于通过使用磁阻传感器测量磁场的装置包括至少一个磁阻传感器（5），用于测量磁阻传感器（5）的电阻的模块（50），用于产生额外的磁阻传感器 包含磁阻传感器（5）的空间中的磁场以及首先用于选择性地控制发电机模块（40,6）以施加具有第一极性的第一值的附加磁场脉冲的控制单元（60） 足以使磁阻传感器（5）饱和的负和大小，其次用于通过用于测量电阻的模块（50）选择性地控制磁阻传感器（5）的电阻的测量。

公开(公告)号：WO2004068152A1

公开(公告)日：2004-08-12

申请号：PCT/EP2003/001517

申请日：2003-01-31

Applicant: COMMISSARIAT ENERGIE ATOMIQUE ,  PANNETIER, Myriam ,  FERMON, Claude

Inventor： PANNETIER, Myriam ,  FERMON, Claude

IPC: G01R15/20

CPC classification number: G01R29/0878 ,  G01R15/205

Abstract: The device for sensing a RF field comprises a flux-receiving loop (1) including a circumferential path having a defined path width (d), the flux-receiving loop (1) having a portion (10) that transforms the magnetic flux flowing through the flux receiving loop (1) into a high magnetic field. The portion (10) comprises a constriction of the flux-receiving loop (1) that concentrates the current lines in the circumferential path to define a current-field transformer. At least one very low noise magnetic field transducer (12) is located at a very close distance from the constriction.

Abstract translation: 用于感测RF场的装置包括包含具有限定的路径宽度（d）的周向路径的磁通接收环路（1），磁通接收环路（1）具有转换流过磁通的部分（10） 磁通接收环路（1）变成高磁场。 部分（10）包括磁通接收回路（1）的收缩部，其将电流线集中在周向路径中以限定电流 - 场变压器。 至少一个非常低噪声的磁场换能器（12）位于与收缩部非常近的距离处。