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1. 发明申请

WO9950690A3 POSITION SENSING 审中-公开
标题翻译：位置传感
公开(公告)号：WO9950690A3
公开(公告)日：2000-01-06
申请号：PCT/GB9901003
申请日：1999-03-31
申请人： FLYING NULL LTD , CROSSFIELD MICHAEL DAVID
发明人： CROSSFIELD MICHAEL DAVID
IPC分类号： G01B7/02 , G01B7/14 , G01B7/30 , G01D5/20 , G01V3/08 , G01V15/00
CPC分类号： G01B7/30 , G01B7/02 , G01B7/14 , G01D5/2013 , G01V3/08
摘要： A method of sensing the position of a first element with respect to a second element is disclosed, the first element being movable with respect to the second. The method comprises: (a) fixing a first magnetic marker to said first element; (b) fixing a second magnetic marker to said second element; (c) sensing the positions of the two markers by a remote magnetic sensing technique. Optionally, a third magnetic marker may be used, the second and third markers then preferably being located at the extremes of travel of said first element. The method may be used to determine linear or angular relationships.
摘要翻译：公开了一种感测第一元件相对于第二元件的位置的方法，第一元件可相对于第二元件移动。该方法包括：（a）将第一磁性标记固定到所述第一元件; （b）将第二磁性标记固定到所述第二元件; （c）通过远程磁感测技术感测两个标记的位置。可选地，可以使用第三磁性标记，然后第二和第三标记优选地位于所述第一元件的行进极限。该方法可用于确定线性或角度关系。

2. 发明申请

WO1997048990A1 MAGNETIC READING DEVICES 审中-公开
标题翻译：磁性读取装置
公开(公告)号：WO1997048990A1
公开(公告)日：1997-12-24
申请号：PCT/GB1997001662
申请日：1997-06-19
申请人： FLYING NULL LIMITED , DAMES, Andrew, Nicholas , CROSSFIELD, Michael, David , McKINNON, Alexander, Wilson
发明人： FLYING NULL LIMITED
IPC分类号： G01V03/08
CPC分类号： G01V3/08
摘要： A detector for sensing the presence of a magnetic tag comprises: (1) a magnet or an arrangement of magnets disposed so as to define a spatial region through or across which the magnetic tag is, in use, passed, the disposition of said magnet(s) and the resultant magnetic field pattern being such as to cause a change in polarity of the magnetisation of said magnetic tag in the course of its passage through or across said spatial region; and (2) a receiver coil or coils arranged to detect magnetic dipole radiation emitted by a magnetic tag as it passes through or across said spatial region. The receiver coils are preferably constructed as an assembly of printed circuit boards whose conductive tracks are interconnected to form a three-dimensional coil having windings in the various layers.
摘要翻译：用于感测磁性标签的存在的检测器包括：（1）磁体或磁体布置，其被设置成在使用中通过或穿过磁性标签通过的空间区域，所述磁体的布置（ s），并且所得到的磁场图案使得在其通过或跨过所述空间区域的过程中引起所述磁性标签的磁化的极性的变化; 以及（2）接收器线圈或线圈，其布置成在磁性标签通过或穿过所述空间区域时检测由磁性标签发射的磁偶极子辐射。接收器线圈优选地构造为印刷电路板的组件，其导电轨道互连以形成具有各种层中的绕组的三维线圈。

3. 发明申请

WO1989006810A1 INSTALLATION AND DETECTION METHOD FOR CONCEALED OBJECTS 审中-公开
标题翻译：隐蔽物体的安装和检测方法
公开(公告)号：WO1989006810A1
公开(公告)日：1989-07-27
申请号：PCT/GB1989000031
申请日：1989-01-13
申请人： SCIENTIFIC GENERICS LIMITED , CROSSFIELD, Michael, David , RAVEN, Anthony
发明人： SCIENTIFIC GENERICS LIMITED
IPC分类号： G01V03/08
CPC分类号： G01V15/00 , H02G9/00
摘要： A method for installation and subsequent location of a concealed object such as an underground cable or pipe comprises locating on or near the object a detection element formed of a ferromagnetic alloy having a high permeability and low coercivity for providing a characteristic magnetic response to an interrogating magnetic field whereby the object can be subsequently located. A detecting apparatus produces an interrogating magnetic field, and incorporates means for detecting a returned signal in accordance with the magnetic response of the element.
摘要翻译：隐蔽物体如地下电缆或管道的安装和随后的位置的方法包括在物体上或附近定位由具有高磁导率和低矫顽磁力的铁磁合金形成的检测元件，以提供对询问磁性的特征磁响应从而可以随后定位对象。检测装置产生询问磁场，并且包括用于根据元件的磁响应检测返回信号的装置。

4. 发明申请

WO1997004338A1 IMPROVEMENTS RELATING TO MAGNETIC TAGS OF MARKERS 审中-公开
标题翻译：关于标记的磁标签的改进
公开(公告)号：WO1997004338A1
公开(公告)日：1997-02-06
申请号：PCT/GB1996000367
申请日：1996-02-16
申请人： SCIENTIFIC GENERICS LIMITED , DAMES, Andrew, Nicholas , CROSSFIELD, Michael, David
发明人： SCIENTIFIC GENERICS LIMITED
IPC分类号： G01V15/00
CPC分类号： G01V15/00 , G11B5/00804
摘要： A magnetic tag or marker is described which is capable of functioning as a multi-bit information carrying tag. The tag may be attached to an article and then used as a means of identifying that article, generally as it enters or is positioned within an interrogation zone. The tag comprises (a) a first magnetic material characterised by high permeability, low coercivity and a non-linear B-H characteristic; and (b) a second magnetic material which is capable of being permanently magnetised, the second magnetic material being magnetised with a non-uniform field pattern (A, B, C). Detection systems for use with such tags, and write/read system using them, are also disclosed.
摘要翻译：描述了能够用作多位信息携带标签的磁性标签或标记。标签可以附着到物品上，然后用作识别该物品的手段，通常当物品进入或定位在询问区域内时。该标签包括（a）以高磁导率，低矫顽力和非线性B-H特征为特征的第一磁性材料; 和（b）能够被永久磁化的第二磁性材料，所述第二磁性材料以不均匀的磁场图案（A，B，C）被磁化。还公开了与这种标签一起使用的检测系统，以及使用它们的写/读系统。

5. 发明申请

WO1993004349A1 MAGNETOSTRICTIVE PRESSURE SENSOR 审中-公开
标题翻译：磁感应压力传感器
公开(公告)号：WO1993004349A1
公开(公告)日：1993-03-04
申请号：PCT/GB1992001551
申请日：1992-08-21
申请人： SCIENTIFIC GENERICS LIMITED , CROSSFIELD, Michael, David
发明人： SCIENTIFIC GENERICS LIMITED
IPC分类号： G01L09/16
CPC分类号： G01L9/16 , B60C23/0408
摘要： A piece of magnetostrictive material (5) is arranged as a diaphragm, or is mounted on a separate diaphragm (3), so as to be stressed by a pressure which is to be sensed. The stress will alter the magnetic properties of the piece of magnetostrictive material (5), reducing its permeability and increasing its coercivity. These changes may be detected by applying an alternating magnetic field to the piece of magnetostrictive material (5), and determining the phase and/or amplitude of harmonics in the induced field emitted by the piece of magnetostrictive material (5). In this way, no contact is required between the sensor and the detection circuitry, and therefore they can move relative to each other. In this way, the sensor can be mounted on a vehicle wheel for sensing vehicle tyre pressure, while the detection circuitry is mounted on the vehicle body. In one embodiment the sensor is mounted so as to seal a hole in a vehicle wheel (35), with the piece of magnetostrictive material (5) outside the pressurised volume but subject to the tyre pressure through the hole in the wheel. In this way the sensor can be mounted on the wheel (35) rather than on the tyre (39), without the metal of the wheel (35) interferring with the transmission of magnetic fields between the piece of magnetostrictive material (5) and coils (13, 15, 27) of the detection circuitry. In another embodiment, particularly suited to situations where the sensor does not move relative to the detection circuitry, a coil (45) is wound around the piece of magnetostrictive material (5), so that changes in the permeability of the piece of magnetostrictive material (5) in response to pressure alter the inductance of the coil (45).
摘要翻译：一片磁致伸缩材料（5）被布置为隔膜，或者安装在单独的隔膜（3）上，以便受到要感测的压力的作用。应力将改变磁致伸缩材料（5）的磁性，降低其磁导率并增加其矫顽力。可以通过对磁致伸缩材料片（5）施加交变磁场，以及确定由该磁致伸缩材料片（5）发射的感应场中的谐波的相位和/或振幅来检测这些变化。以这种方式，传感器和检测电路之间不需要接触，因此它们可以相对于彼此移动。以这种方式，传感器可以安装在用于感测车辆轮胎压力的车轮上，同时检测电路安装在车体上。在一个实施例中，传感器被安装成密封车轮（35）中的孔，其中一个磁致伸缩材料（5）在加压体积之外，但是经受轮胎中的孔的轮胎压力。以这种方式，传感器可以安装在轮子（35）而不是在轮胎（39）上，而轮子（35）的金属不会在磁致伸缩材料（5）和线圈（13,15,27）。在另一个实施例中，特别适用于传感器相对于检测电路不移动的情况，线圈（45）缠绕在该磁致伸缩材料（5）周围，使得该磁致伸缩材料片 5）响应于压力改变线圈（45）的电感。

6. 发明申请

WO1989009983A1 ANTIPILFERAGE SYSTEMS 审中-公开
标题翻译：防伪系统
公开(公告)号：WO1989009983A1
公开(公告)日：1989-10-19
申请号：PCT/GB1989000164
申请日：1989-02-20
申请人： SCIENTIFIC GENERICS LIMITED , CROSSFIELD, Michael, David
发明人： SCIENTIFIC GENERICS LIMITED
IPC分类号： G08B13/24
CPC分类号： G08B13/2408 , G08B13/2437 , G08B13/2442 , H01F5/003
摘要： An antipilferage system for the detection of magnetic tags comprises an assembly (2) of spirally wound emitter (1) and/or detector (39, 36) coils. This arrangement enables a tag to be detected regardless of its orientation.

7. 发明申请

WO9909436B1 IMPROVEMENTS RELATING TO SURGICAL DEVICES AND THEIR LOCATION 审中-公开
标题翻译：手术装置及其位置的改进
公开(公告)号：WO9909436B1
公开(公告)日：1999-04-08
申请号：PCT/GB9802479
申请日：1998-08-19
申请人： FLYING NULL LTD , ENGLAND MARK , DAMES ANDREW NICHOLAS , CROSSFIELD MICHAEL DAVID
发明人： ENGLAND MARK , DAMES ANDREW NICHOLAS , CROSSFIELD MICHAEL DAVID
IPC分类号： G01V3/00 , A61B17/34 , A61B19/00 , A61M25/00 , G01V15/00
CPC分类号： G01V15/00
摘要： A surgical device, e.g. a catheter or a prosthesis, is disclosed which is characterized in that it carries, at a predetermined location, a tag formed of a high permeability, low coercivity magnetic material. Also disclosed is a method of locating a surgical device within the human or animal body, which comprises inserting the device into the body together with a magnetically active marker, the marker being associated with a predetermined location on the surgical device; and sensing the position of the marker, and hence of the surgical device, by remotely detecting its magnetic response to an interrogating signal. Systems for use in this method are also disclosed.
摘要翻译：手术装置，例如公开了一种导管或假体，其特征在于它在预定位置处携带由高磁导率，低矫顽力磁性材料形成的标签。还公开了一种将手术装置定位在人体或动物体内的方法，该方法包括将装置与磁性有源标记一起插入身体中，该标记与手术装置上的预定位置相关联; 并且通过远程检测其对询问信号的磁响应来感测标记物的位置并且因此感测手术装置的位置。还公开了用于该方法的系统。

8. 发明申请

WO1998015851A1 MAGNETIC INTERROGATION TECHNIQUES 审中-公开
标题翻译：磁力互动技术
公开(公告)号：WO1998015851A1
公开(公告)日：1998-04-16
申请号：PCT/GB1997002772
申请日：1997-10-08
申请人： FLYING NULL LIMITED , DAMES, Andrew, Nicholas , CROSSFIELD, Michael, David
发明人： FLYING NULL LIMITED
IPC分类号： G01V03/10
CPC分类号： G06K7/10336 , G01V3/107 , G01V15/00 , G06K7/10316
摘要： A reader for interrogating a magnetic tag, e.g. for reading data stored in the tag, is described. The reader comprises a field generating device the magnetic field produced by which defines an interrogation zone, wherein said field generating device comprises: (a) means for generating a magnetic field; (b) a transmit coil for transmitting an interrogating electromagnetic signal into the interrogation zone so as to interact with a magnetic tag, when present in said interrogation zone; and (c) at least one receive coil for receiving an electromagnetic signal generated by a tag in response to said interrogating signal and the magnetic field produced by said magnetic field generating means. The field generating means can take the form of a pair of hollow cylinders, giving rise to a "loop" reader, or it can be a flat magnet, giving rise to a "side pass" reader.
摘要翻译：用于询问磁性标签的读取器，例如用于读取存储在标签中的数据。读取器包括场产生装置，其产生的磁场限定了询问区，其中所述场产生装置包括：（a）用于产生磁场的装置; （b）发送线圈，用于当存在于所述询问区域时，将询问电磁信号发送到询问区域中，以与磁标签相互作用; 和（c）至少一个接收线圈，用于响应于所述询问信号和由所述磁场产生装置产生的磁场而接收由标签产生的电磁信号。场产生装置可以采取一对中空圆柱体的形式，产生一个“循环”的读取器，或者它可以是平坦的磁体，从而产生“旁路”读取器。

9. 发明申请

WO1998013708A1 MULTI-LAYER MAGNETIC TAG 审中-公开
标题翻译：多层磁标签
公开(公告)号：WO1998013708A1
公开(公告)日：1998-04-02
申请号：PCT/GB1997002690
申请日：1997-09-29
申请人： FLYING NULL LIMITED , CROSSFIELD, Michael, David , COGGILL, Christopher, John
发明人： FLYING NULL LIMITED
IPC分类号： G01V15/00
CPC分类号： G01V15/00
摘要： A magnetic marker or tag is disclosed which comprises (a) a first magnetic material characterised by high permeability, low coercivity and a non-linear B-H characteristic; and (b) a second magnetic material which is capable of being permanently magnetised, said first and second magnetic materials being superimposed one on the other and advantageously being substantially coterminous. The second magnetic material is preferably of medium coercivity. Selected regions of said second magnetic material can carry magnetisation such as to magnetically divide the first magnetic material into a series of magnetically discrete zones, the length of said magnetically discrete zones and/or the lengths of said magnetised regions ("gaps") of said second material constituting elements of a code.
摘要翻译：公开了一种磁性标记或标签，其包括（a）以高磁导率，低矫顽力和非线性B-H特征为特征的第一磁性材料; 和（b）能够被永久磁化的第二磁性材料，所述第一和第二磁性材料彼此叠加并且有利地基本上相互重叠。第二磁性材料优选为中等矫顽力。所述第二磁性材料的选定区域可以承载磁化，以将第一磁性材料磁分割成一系列磁性离散的区域，所述磁性离散区域的长度和/或所述磁性区域的长度（“间隙”）构成代码的第二材料构成要素。

10. 发明申请

WO2006027580A1 SECURITY DEVICE AND TRANSPONDER 审中-公开
标题翻译：安全设备和传送器
公开(公告)号：WO2006027580A1
公开(公告)日：2006-03-16
申请号：PCT/GB2005/003453
申请日：2005-09-07
申请人： DUBOIS LIMITED , JOHNSTON, Robert , CROSSFIELD, Michael, David , JONES, Ross, Peter
发明人： JOHNSTON, Robert , CROSSFIELD, Michael, David , JONES, Ross, Peter
IPC分类号： G08B13/24
CPC分类号： H01Q1/2225 , G06K19/07779 , G06K19/07781 , G08B13/2414 , G08B13/2431 , G08B13/2434 , G08B13/2442 , G08B13/2445 , H01Q1/22 , H01Q7/08
摘要： A transponder comprises a substantially flat strip of magnetic material and an elongate electrical conductor wound around the strip along at least part of its length. The transponder may be part of a store security device for securing to a container, which prevents a product from being removed from the container, e.g. by preventing the container from being opened. The product may be a media storage disk, such as a CD or DVD.
摘要翻译：应答器包括基本上平坦的磁性材料带和沿其长度的至少一部分缠绕在带上的细长电导体。应答器可以是用于固定到容器的商店安全装置的一部分，其防止产品从容器中移除，例如，通过防止容器被打开。该产品可以是介质存储盘，例如CD或DVD。

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