公开(公告)号：US07990136B2

公开(公告)日：2011-08-02

申请号：US12852219

申请日：2010-08-06

申请人： Didier Frachon ,  Pierre Gandel

发明人： Didier Frachon ,  Pierre Gandel

IPC分类号： G01B7/14 ,  G01B7/30

CPC分类号： G01D5/147

摘要： A variable reluctance analog position device designed to determine the position variation of a target made from a ferromagnetic material. The device includes at least one magnet, the target and the magnet defining a gap therebetween. A magnetosensitive element detects induction variation produced in the gap by relative movement of the target relative to the magnet. The magnet is magnetized in a direction essentially perpendicular to the front surface of the magnet, which defines one edge of the gap. The magnet includes a cavity open at the front surface thereof and the magnetosensitive element is housed in the cavity. Moreover, the target is provided with a specific geometric configuration determined such that the induction variation according to the position of the target corresponds to a pre-defined function.

摘要翻译： 设计用于确定由铁磁材料制成的靶的位置变化的可变磁阻模拟位置装置。 该装置包括至少一个磁体，靶和磁体在它们之间形成间隙。 磁感应元件通过靶相对于磁体的相对运动来检测在间隙中产生的感应变化。 磁体在基本上垂直于磁体的前表面的方向上被磁化，该方向限定了间隙的一个边缘。 磁体包括在其前表面开口的空腔，磁敏元件容纳在空腔中。 此外，目标被提供有确定的特定几何配置，使得根据目标的位置的感应变化对应于预定义的功能。

公开(公告)号：US20130057258A1

公开(公告)日：2013-03-07

申请号：US13640893

申请日：2011-04-07

申请人： Didier Frachon ,  Stephane Biwersi

发明人： Didier Frachon ,  Stephane Biwersi

IPC分类号： G01B7/14 ,  G01B7/30

CPC分类号： G01D5/147

摘要： The invention relates to a contactless magnetic sensor for detecting a linear or angular position, comprising a moveable ferromagnetic element (1) the position of which is detected, and a stator assembly (2) itself, comprising two ferromagnetic parts (3, 4), defining with the moveable ferromagnetic element (1) two respective air gaps (7, 8), a permanent magnet (5) and a magneto-sensitive element (6) subjected to a magnetic field that depends on the position of the moveable ferromagnetic element (1) and designed to deliver a measurement signal that depends on the magnetic field to which it is subjected. According to the invention, the two ferromagnetic parts (3, 4) define therebetween a third air gap (9), the permanent magnet (5) being rigidly connected only to the first ferromagnetic part (3) and the magneto-sensitive element (6) being placed in the third air gap (9).

摘要翻译： 本发明涉及一种用于检测直线或角度位置的非接触式磁传感器，包括检测位置的可动铁磁元件（1）和包括两个铁磁部件（3,4））的定子组件（2）本身， 用可移动的铁磁元件（1）限定两个相应的气隙（7,8），永磁体（5）和感应磁体（6），其受到取决于可移动铁磁元件的位置的磁场（ 1）并且被设计成传送取决于其所经受的磁场的测量信号。 根据本发明，两个铁磁部件（3,4）在其间限定第三气隙（9），永磁体（5）仅刚性地连接到第一铁磁部件（3）和磁敏元件（6） ）放置在第三气隙（9）中。

公开(公告)号：US08373410B2

公开(公告)日：2013-02-12

申请号：US12516107

申请日：2007-11-26

申请人： Didier Frachon

发明人： Didier Frachon

IPC分类号： G01B7/30 ,  G01B7/14

CPC分类号： G01D5/145

摘要： The invention relates to a magnetic angular or linear sensor including at least one permanent magnet defined in a cylindrical (r, Q & z) or Cartesian (x, y & z) coordinate system and at least two magneto-sensitive elements, in which the magnet can move in relation to said two magneto-sensitive elements. The invention is characterized in that at least one dimension of the magnet varies as a non-constant function and in that the magnetization of the magnets is oriented in a single direction, i.e. x, y or z in the case of a magnet defined in a Cartesian coordinate system or r, Q or z in the case of a magnet defined in a cylindrical coordinate system.

摘要翻译： 本发明涉及磁性角度或线性传感器，其包括限定在圆柱形（r，Q＆z）或笛卡尔坐标系（x，y＆z）中的至少一个永磁体和至少两个磁敏元件，其中 磁体可以相对于所述两个磁敏元件移动。 本发明的特征在于，磁体的至少一个尺寸作为非常数函数而变化，并且在磁体的磁化方向定向为单个方向即x，y或z的情况下磁体的磁化定义为 在圆柱坐标系中定义的磁体的情况下，笛卡尔坐标系或r，Q或z。

公开(公告)号：US07391205B2

公开(公告)日：2008-06-24

申请号：US10509327

申请日：2003-03-31

申请人： Pierre Gandel ,  Daniel Prudham ,  Didier Frachon ,  Bruno Cavallier

发明人： Pierre Gandel ,  Daniel Prudham ,  Didier Frachon ,  Bruno Cavallier

IPC分类号： G01B7/30 ,  G01B7/14

CPC分类号： G01D5/145

摘要： An angular-position magnetic-sensor device includes at least one stator and one rotor. A space between said stator and said rotor, defining over substantially 360°, is a main air gap including at least two movable magnetic poles of alternating polarities. The stator is provided with at least one secondary air gap in which there is placed at least one magnetosensitive element. The stator is composed of two pole shoes having angular widths that are substantially equal to 120° and 240° respectively, and the two magnetic poles each have an angular width substantially equal to 120°.

摘要翻译： 角位置磁传感器装置包括至少一个定子和一个转子。 所述定子和所述转子之间的间隔大致360度的空间是包括至少两个交替极性的可动磁极的主气隙。 定子设置有至少一个二次空气间隙，其中放置有至少一个磁感应元件。 定子由具有基本上等于120°和240°的角宽度的两个极靴组成，并且两个磁极各自具有基本上等于120°的角宽度。

公开(公告)号：US20050140361A1

公开(公告)日：2005-06-30

申请号：US10509327

申请日：2003-03-31

申请人： Pierre Gandel ,  Daniel Prudham ,  Didier Frachon ,  Bruno Cavallier

发明人： Pierre Gandel ,  Daniel Prudham ,  Didier Frachon ,  Bruno Cavallier

IPC分类号： G01D5/14 ,  G01B7/14 ,  G01B7/30 ,  G01R33/06

CPC分类号： G01D5/145

摘要： The invention concerns a angular position magnetic sensor device, comprising at least one stator (1, 2) and one rotor (3), the gap between said stator (1, 2) and said rotor (3) defining a main air gap (4) wherein move at least two magnetic poles (5, 6) of alternating polarities, said stator (1, 2) including at least one secondary air gap (7, 8) wherein is placed at least one magnetosensitive element (9). The invention is characterized in that said stator (1, 2) consists of two pole shoes (1 and 2) with angular widths respectively substantially equal to 120° and 240°, and that both magnetic poles (5, 6) have each an angular width substantially equal to 120°.

摘要翻译： 本发明涉及一种角度位置磁传感器装置，包括至少一个定子（1,2）和一个转子（3），所述定子（1,2）和所述转子（3）之间的间隙限定主气隙（4） ），其中移动具有交替极性的至少两个磁极（5,6），所述定子（1,2）包括至少一个二次气隙（​​7,8），其中放置有至少一个磁敏元件（9）。 本发明的特征在于，所述定子（1,2）由两个角度宽度分别基本上等于120°和240°的极靴（1和2）组成，并且两个磁极（5,6）各自具有角度 宽度基本上等于120°。

公开(公告)号：US06593734B1

公开(公告)日：2003-07-15

申请号：US09926111

申请日：2001-09-21

申请人： Pierre Gandel ,  Didier Frachon

发明人： Pierre Gandel ,  Didier Frachon

IPC分类号： G01B730

CPC分类号： G01D5/145 ,  G01B7/30

摘要： A magnetic position sensor, linear or rotary, including a stator and at least a mobile part along at least a direction OX, with an effective stroke Xc. The stator includes at least two components made of soft magnetic material defining at least a secondary air gap in which is housed at least a magneto-sensitive probe. Each stator part component has a length Xs in the direction OX not less than Xc. The magnets of one mobile part are extended over at least one edge by a mobile ferromagnetic component having a thickness e, in the direction of a magnetization of one magnet, such that 0.1 L

摘要翻译： 线性或旋转的磁性位置传感器，包括定子和沿至少一个方向OX的至少一个移动部件，具有有效行程Xc。 定子包括由限定至少二次空气间隙的软磁材料制成的至少两个部件，其中容纳至少一个磁敏探针。 每个定子部件部件具有不小于Xc的方向OX的长度Xs。 一个移动部件的磁体在一个磁体的磁化方向上由具有厚度e的移动铁磁部件在至少一个边缘上延伸，使得0.1L

公开(公告)号：US06236125B1

公开(公告)日：2001-05-22

申请号：US09402461

申请日：1999-11-02

申请人： Claude Oudet ,  Pierre Gandel ,  Didier Frachon ,  Christophe Besson

发明人： Claude Oudet ,  Pierre Gandel ,  Didier Frachon ,  Christophe Besson

IPC分类号： H02K4100

CPC分类号： H02K33/16

摘要： A linear uniphase polarized electromagnetic actuator. The actuator includes a coiled stator and one part which is movable in the direction OX with the useful travel of Xc. The movable part is moved according to the current traveling in the coil and the direction of travel depends on the direction of the current. The movable part includes a yoke of soft magnetic material having at least one magnet coupled with the yoke. The magnet is partially set inside a cavity of the mobile yoke on the side of the stator poles at a depth e such that 0.1 L

摘要翻译： 线性非相极化电磁执行器。 致动器包括一个线圈定子和一个可以沿着X方向移动的零件。 可移动部分根据在线圈中行进的电流而移动，并且行进方向取决于电流的方向。 可移动部分包括具有至少一个磁体与磁轭耦合的软磁材料轭。 磁体部分地设置在定子极侧上的可动磁轭的空腔内，深度为e，使得0.1L

公开(公告)号：US08519700B2

公开(公告)日：2013-08-27

申请号：US12093705

申请日：2006-11-15

申请人： Nikola Jerance ,  Didier Frachon

发明人： Nikola Jerance ,  Didier Frachon

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： An angular position sensor includes a moving element consisting of at least one essentially cylindrical permanent magnet turning about it axis, at least two magnetosensitive elements and at least one processing circuit furnishing a signal dependent on the absolute position of the moving element The magnetosensitive elements are located essentially at the same point and in that they measure the tangential component of the magnetic field and the radial and/or axial component of the magnetic field for furnishing 2 sinusoidal signals that are essentially 90° out of phase.

摘要翻译： 角度位置传感器包括由围绕其轴线旋转的至少一个基本上圆柱形的永磁体组成的移动元件，至少两个磁感应元件和至少一个处理电路，所述至少一个处理电路提供取决于移动元件的绝对位置的信号。磁敏元件位于 基本上在同一点，并且它们测量磁场的切向分量以及磁场的径向和/或轴向分量，以提供基本上相差90°的2个正弦信号。

公开(公告)号：US20110254543A1

公开(公告)日：2011-10-20

申请号：US13125768

申请日：2009-09-28

申请人： Didier Frachon ,  Gérald Masson ,  Stéphane Biwersi

发明人： Didier Frachon ,  Gérald Masson ,  Stéphane Biwersi

IPC分类号： G01B7/30 ,  G01B7/14

CPC分类号： G01D5/145

摘要： The present disclosure relates to a magnetic position sensor with field direction measurement and a flux collector. The disclosure proposes to measure two magnetic induction components at one and the same point, harmonizing the amplitude of the two magnetic induction components using flux collectors so as to have a ratio of the amplitudes of these two components close to one. For this purpose, the disclosure provides a contactless position sensor including at least one permanent magnet, emitting a magnetic field, at least one detection element sensitive to the direction of the magnetic field, and at least one pair of flux collectors, the permanent magnet being capable of moving in a direction of displacement and having a direction of magnetization that can be continuously varied according to the direction of displacement. Each flux collector has at least one portion, provided with an end, extending substantially along the direction of displacement of the magnet. The ends of a pair of flux collectors define a gap oriented along the direction of displacement of the magnet. The detection element is positioned outside the gap and substantially equidistant from the ends.

摘要翻译： 本发明涉及具有场方向测量的磁性位置传感器和磁通收集器。 本公开提出在同一点测量两个磁感应元件，使用磁通收集器来协调两个磁感应元件的振幅，以使这两个分量的振幅之比接近于1。 为此，本发明提供了一种非接触式位置传感器，其包括至少一个永磁体，发射磁场，至少一个对磁场方向敏感的检测元件，以及至少一对磁通收集器，永磁体是 能够沿位移方向移动并且具有可以根据位移方向连续变化的磁化方向。 每个磁通收集器具有至少一个部分，其设置有基本上沿着磁体的位移方向延伸的端部。 一对磁通收集器的端部限定沿着磁体的位移方向定向的间隙。 检测元件位于间隙的外侧，并且与端部基本等距。

公开(公告)号：US20110175600A1

公开(公告)日：2011-07-21

申请号：US12093705

申请日：2006-11-15

申请人： Nikola Jerance ,  Didier Frachon

发明人： Nikola Jerance ,  Didier Frachon

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： The invention relates to an angular position sensor comprising a moving element consisting of at least one essentially cylindrical permanent magnet (1) turning about it axis, at least two magnetosensitive elements (2, 3) and at least one processing circuit (4) furnishing a signal dependent on the absolute position of the moving element, characterized in that the magnetosensitive elements (2, 3) are located essentially at the same point and in that they measure the tangential component of the magnetic field and the radial and/or axial component of the magnetic field for furnishing 2 sinusoidal signals that are essentially 90° out of phase.

摘要翻译： 本发明涉及一种角位置传感器，其包括由围绕其轴线旋转的至少一个基本圆柱形的永磁体（1）和至少两个磁敏元件（2,3）和至少一个处理电路（4）组成的移动元件， 信号取决于移动元件的绝对位置，其特征在于磁感应元件（2,3）基本上位于同一点上，并且因为它们测量磁场的切向分量，并且其中径向和/或轴向分量 用于提供基本上90°异相的2个正弦信号的磁场。