公开(公告)号：US20040178789A1

公开(公告)日：2004-09-16

申请号：US10799122

申请日：2004-03-12

发明人： Dominick A. Candelore III ,  Dominick A. Candelore SR.

IPC分类号： G01N027/72 ,  G08B013/24 ,  G01R033/00

CPC分类号： G01V3/08

摘要： A metal detector that includes a substantially non-metallic housing that defines a hollow cavity and a human walking surface and a metal scanner element positioned in the hollow cavity defined by the non-metallic housing, wherein the walking surface receives a covered human foot. This invention allows travelers to leave their shoes on while transiting security checkpoints.

摘要翻译： 一种金属检测器，其包括限定中空腔和人体行走表面的基本上非金属的壳体，以及定位在由非金属壳体限定的中空腔中的金属扫描器元件，其中，所述行走表面接收被覆盖的人脚。 本发明允许旅行者在过境安全检查站时离开他们的鞋子。

公开(公告)号：US20030016131A1

公开(公告)日：2003-01-23

申请号：US10182519

申请日：2002-07-30

发明人： Carl V. Nelson

IPC分类号： G08B013/24

CPC分类号： G01V3/105 ,  G01V3/15

摘要： A steerable electromagnetic induction (EMI) sensor system for measuring the magnetic polarizability tensor of a metal target. Instead of creating a vertical magnetic field from a horizontal loop transmitter configuration used by most prior art EMI metal detectors, the transmitter geometry of the sensor system's antenna is designed especially for creating multiple horizontal and vertical magnetic fields and for steering the same in all directions. The horizontal magnetic field (HMF) antenna has the potential advantage of a relatively uniform magnetic field over a large volume. A second potential advantage of the HMF antenna is that compared to a conventional loop antenna, the magnetic field intensity falls off slowly with distance from the plane of the antenna. Combining two HMF sensor systems creates a sterrable two-dimensional magnetic field sensor. Combining the steerable HMF sensor with a vertical magnetic field antenna forms a three-dimensional steerable magnetic field sensor system.

摘要翻译： 用于测量金属靶的磁极化率张量的可操纵的电磁感应（EMI）传感器系统。 大多数现有技术的EMI金属检测器所使用的水平环路发射器配置不是产生垂直磁场，而是将传感器系统天线的发射机几何形状设计成专门用于产生多个水平和垂直磁场，并在所有方向上转向它们。 水平磁场（HMF）天线具有在大体积上相对均匀的磁场的潜在优势。 HMF天线的第二个潜在优点是，与传统的环形天线相比，磁场强度随着距离天线平面的距离而缓慢下降。 组合两个HMF传感器系统创建了一个可置信的二维磁场传感器。 将可操纵的HMF传感器与垂直磁场天线组合形成三维可控磁场传感器系统。

公开(公告)号：US20040252068A1

公开(公告)日：2004-12-16

申请号：US10855203

申请日：2004-05-27

发明人： Stewart E. Hall ,  Brent F. Balch ,  Richard L. Copeland ,  William Farrell

IPC分类号： H01Q001/00 ,  H01Q007/08 ,  G08B013/24 ,  H01Q021/00

CPC分类号： H01Q1/2216 ,  H01F17/045 ,  H01Q1/22 ,  H01Q7/06 ,  H01Q7/08 ,  H01Q21/00

摘要： A magnetic core antenna system including a magnetic core and a winding network. The winding network may be configured with a non-uniform ampere-turn distribution to achieve a desired flux density in the core. The network may include a plurality of windings configured to provide a winding impedance facilitating optimal transmitter power delivery to the windings. A magnetic core may be constructed from multiple components having longitudinal contact surfaces and joined by a transverse clamping force. An air gap may be provided between the components to allow relative movement therebetween.

摘要翻译： 一种包括磁芯和绕组网络的磁芯天线系统。 绕组网络可以被配置为具有不均匀的安培转弯分布，以在芯中实现期望的通量密度。 网络可以包括多个绕组，其被配置为提供绕线阻抗，从而有助于绕组的最佳发射器功率传递。 磁芯可以由具有纵向接触表面的多个部件构成并通过横向夹紧力连接。 可以在部件之间设置气隙以允许它们之间的相对移动。

公开(公告)号：US20040056652A1

公开(公告)日：2004-03-25

申请号：US10666165

申请日：2003-09-19

发明人： Timothy J. Bomya

IPC分类号： G01B007/14 ,  G08B013/24 ,  B60Q001/00

CPC分类号： G01B7/24 ,  B60R21/0134 ,  B60R21/0136 ,  B60R2021/0004 ,  B60R2021/0006 ,  B60R2021/01027 ,  G01D5/2013 ,  G01D5/2046

摘要： A coil is operatively associated with a magnetic circuit of a vehicle body, and is adapted to cooperate with a time-varying magnetic flux in the vehicle body that is responsive to a condition of the vehicle body sensed by the magnetic sensor. An electrical circuit is operatively coupled to the coil, and the coil in cooperation therewith exhibits a resonant or near-resonant condition in association with the time-varying magnetic flux for at least one condition of the vehicle body. In one embodiment, a signal from an oscillator is applied to the series combination of a capacitor and the coil, which generates an oscillatory magnetic flux in the magnetic circuit. In another embodiment, a second capacitor is connected in parallel with a second coil which operates in a resonant or near-resonant condition responsive to the oscillatory magnetic flux in the magnetic circuit.

摘要翻译： 线圈与车体的磁路可操作地相关联，并且适于与车身中随时间变化的磁通量相配合，该磁通量响应于由磁传感器感测到的车体的状况。 电路可操作地耦合到线圈，并且与其配合的线圈与车身的至少一个状态的时变磁通相关联地呈现谐振或近共振状态。 在一个实施例中，来自振荡器的信号被施加到电容器和线圈的串联组合，其在磁路中产生振荡磁通量。 在另一个实施例中，第二电容器与响应于磁路中的振荡磁通的共振或近共振状态的第二线圈并联连接。

公开(公告)号：US20040135687A1

公开(公告)日：2004-07-15

申请号：US10706593

申请日：2003-11-12

申请人： QinetiQ Limited

发明人： Mark Nicholas Keene

IPC分类号： G08B013/24

CPC分类号： G01V11/00 ,  G01R33/288

摘要： An apparatus for detecting ferromagnetic objects in the vicinity of a magnetic resonance imaging scanner. The apparatus comprises primary sensor means adapted to measure a magnetic field, arranged in communication with signal processing means configured to identify temporal variations in the measured magnetic field due to the movement of a ferromagnetic object within an ambient magnetic field and to provide an output indicative of the presence of a ferromagnetic object in the vicinity of the primary sensor means. The apparatus further comprises secondary, non-magnetic, sensor means adapted to detect the movement of objects in the vicinity of the primary sensor means in order to reduce false alarms. The output from the signal processing means may be used to operate an audible alarm, a visual alarm, an automatic door lock or a physical barrier.

摘要翻译： 一种在磁共振成像扫描仪附近检测铁磁物体的装置。 该装置包括适于测量磁场的主要传感器装置，其被布置成与信号处理装置通信，信号处理装置被配置为识别由于铁磁物体在环境磁场内的移动而导致的测量的磁场的时间变化，并提供指示 在主传感器装置附近存在铁磁物体。 该装置还包括适于检测主传感器装置附近的物体的运动以便减少假警报的次级非磁性传感器装置。 来自信号处理装置的输出可用于操作声音报警器，视觉报警器，自动门锁或物理屏障。

公开(公告)号：US20030076229A1

公开(公告)日：2003-04-24

申请号：US10220632

申请日：2002-09-04

发明人： Roland Blanpain ,  Gilles Delapierre

IPC分类号： G08B013/24

CPC分类号： G08B13/1436

摘要： Device for the detection of movement of a valuable object, for example in a museum in which means of detecting at least a rotation of the object, and particularly magnetometers or inclinometers, are mechanically fixed to the object. These means are coupled to message transmission means that send a presence message as long as detection has not taken place and an alert type message when detection has taken place. A monitoring station processes these messages or the absence of these messages, to trigger an alert if necessary.

摘要翻译： 用于检测有价值物体的移动的装置，例如在博物馆中，其中检测物体的至少旋转的装置，特别是磁力计或倾斜仪被机械地固定到物体上。 这些装置耦合到消息传输装置，只要检测没有发生，发送存在消息，并且在发生检测时发出警报类型消息。 监控站处理这些消息或不存在这些消息，以在必要时触发警报。

公开(公告)号：US20040021568A1

公开(公告)日：2004-02-05

申请号：US10209177

申请日：2002-07-31

申请人： SchlumbergerSema Inc.

发明人： Brian Keith Seal ,  Brent Martin

IPC分类号： G08B013/24

CPC分类号： G01R22/066

摘要： The present technology involves a method and apparatus for detecting and reporting magnetic fields in the proximity of a utility meter as an approach to determining tampering of such meter. The sensitivity level of the magnetic field sensors may be adjustable allowing either remote or local sensitivity adjustments to a magnetic field sensor to compensate for variations in the electromagnetic environments of different meter installation sites. Alternatively, the output of each magnetic field sensor may be connected to the input of an adjustable threshold circuit. When the output voltage of the magnetic field exceeds a predetermined threshold voltage, a magnetic event signal is generated. Threshold adjustments to the adjustable threshold circuit may be performed locally at the meter site or remotely from a station. The output of each magnetic field sensor may be monitored by a locally or remotely programmable magnetic sensor output monitor. Such magnetic sensor output monitor generates a magnetic event signal when a predetermined number of magnetic sensors have been activated.

摘要翻译： 本技术涉及用于在公用电表附近检测和报告磁场的方法和装置，作为确定这种仪表的篡改的方法。 磁场传感器的灵敏度水平可以是可调节的，可以对磁场传感器进行远程或局部灵敏度调整，以补偿不同仪表安装位置的电磁环境的变化。 或者，每个磁场传感器的输出可以连接到可调阈值电路的输入。 当磁场的输出电压超过预定阈值电压时，产生磁事件信号。 对可调节阈值电路的阈值调整可以在仪表现场或远离站点本地执行。 每个磁场传感器的输出可以由本地或远程可编程的磁传感器输出监视器监视。 当预定数量的磁传感器被激活时，这种磁传感器输出监视器产生磁事件信号。

公开(公告)号：US20040012494A1

公开(公告)日：2004-01-22

申请号：US10269732

申请日：2002-10-10

发明人： Bert Taeho Lee

IPC分类号： G08B013/24

CPC分类号： G01V3/104

摘要： The present invention is to provide a weapon detector system that does not give an uncomfortable feeling to a general messenger passing through an entrance. The weapon detector system of the present invention comprises: a detecting gate 2, which is placed on the inside of an entrance 1; a central processing unit 4 connected by wire with transmitter coils 3a and receiver coils 3b of the detecting gate 2; and an image receiving device 6, a warning indication lamp 7 and a photographing device 8 that are wirelessly controlled by the central processing unit 4, in characterized that the detecting gate 2 comprises a pair of side panels 9a and 9b without an upper panel which is connected the side panels each other, wherein one of said side panels contains the transmitter coils 3a and the other side panel contains the receiver coils 3b, the side panel 9a containing the transmitter coils 3a and the side panel 9b containing the receiver coils 3b stands on both sides of the entrance to face each other, and the insulating material 11 is situated on a suitable position of a metallic frame 12 surrounding the entrance 1 for the sake of preventing a scattering and vortex phenomenon.

摘要翻译： 本发明提供一种武器检测器系统，其不会对通过入口的通用通信器产生不舒适的感觉。 本发明的武器探测器系统包括：检测门2，其位于入口1的内侧; 中央处理单元4通过线与发射器线圈3a和检测门2的接收线圈3b连接; 以及由中央处理单元4无线控制的图像接收装置6，警告指示灯7和拍摄装置8，其特征在于检测门2包括一对不具有上面板的侧板9a和9b， 将侧面板彼此连接，其中一个侧面板包含发射器线圈3a，另一个侧面板包含接收器线圈3b，包含发射器线圈3a的侧面板9a和包含接收器线圈3b的侧板9b位于 为了防止散射和涡流现象，绝缘材料11位于入口1周围的金属框架12的适当位置上。

公开(公告)号：US20030193396A1

公开(公告)日：2003-10-16

申请号：US10395308

申请日：2003-03-24

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Gabriel Daalmans ,  Roland Finkler ,  Viktor Wesselak

IPC分类号： G08B013/24

CPC分类号： G01P3/49 ,  G01P15/003

摘要： In a motion detector according to the Ferraris principle, an excitation element applies an inhomogeneous time-dependent alternating magnetic field to an induction element. A motion of the induction element induces in the induction element an eddy current with a temporal characteristic that depends both on the velocity and the acceleration. A sensor element measures the temporal characteristic of the eddy current and supplies the temporal characteristic to a signal processing circuit which determines at least one useful signal that is proportional to the velocity and acceleration, respectively.

摘要翻译： 在根据Ferraris原理的运动检测器中，激励元件将不均匀的时间依赖的交变磁场施加到感应元件。 感应元件的运动在感应元件中感应具有取决于速度和加速度的时间特性的涡流。 传感器元件测量涡流的时间特性并将时间特性提供给信号处理电路，该信号处理电路分别确定与速度和加速度成比例的至少一个有用信号。

公开(公告)号：US20030164765A1

公开(公告)日：2003-09-04

申请号：US10273129

申请日：2002-10-18

申请人： AICHI MICRO INTELLIGENT CORPORATION

发明人： Kazumasa Sumi ,  Tomohiko Nagao ,  Yoshinobu Honkura ,  Masaki Mori

IPC分类号： G08B013/24

CPC分类号： G01R33/02

摘要： The present invention is a magnetic field detection device that makes use of a frequency characteristic affording circuit in order to selectively detect magnetic signals from a frequency domain accurately at a high level of sensitivity. The present invention has a magneto-impedance element, a detector coil and a negative feedback coil which is wound around the magneto-impedance element, and a frequency characteristic affording circuit which affords a frequency characteristics on the negative feedback signal of a negative feedback connecting an output terminal thereof with the negative feedback coil. Using filters as the frequency characteristic affording circuit, the following are possible uses of this magnetic field detection device: a geomagnet detection device for earthquake prediction (using a high-pass filter), a bill validation apparatus for vending machines, etc. (using a low-pass filter), and a magnetic oscillation detection device for a magnetic gate system (using a band-reject filter).

摘要翻译： 本发明是利用频率特性提供电路的磁场检测装置，以便以高灵敏度精确地选择性地从频域检测磁信号。 本发明具有缠绕在磁阻元件上的磁阻抗元件，检测线圈和负反馈线圈，以及频率特性提供电路，其在负反馈信号上提供负反馈的频率特性， 输出端与负反馈线圈连接。 使用滤波器作为频率特性提供电路，以下是该磁场检测装置的可能用途：用于地震预测的地磁检测装置（使用高通滤波器），用于自动售货机的纸币确认装置等（使用 低通滤波器）和用于磁栅系统的磁振荡检测装置（使用带阻滤波器）。