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公开(公告)号：US20120086450A1
公开(公告)日：2012-04-12
申请号：US13243395
申请日：2011-09-23
CPC分类号： G01R33/441 , G01N24/084
摘要： A system and method for detecting objects foreign to a human body. The system including a thermal detector configured to obtain thermal imaging data, a quadrapole resonance (QR) device configured to transmit an excitation signal and receive a resulting signal emanating from a material excited by the excitation signal, and a controller configured to determine if a foreign object is present based on the thermal imaging data and the excitation signal.
摘要翻译： 一种用于检测与人体异物的物体的系统和方法。 该系统包括被配置为获得热成像数据的热检测器，被配置为传送激励信号并接收从由激励信号激发的材料发出的结果信号的四极共振（QR）装置，以及被配置为确定是否外来 基于热成像数据和激励信号存在物体。
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公开(公告)号：US20110187535A1
公开(公告)日：2011-08-04
申请号：US12820457
申请日：2010-06-22
IPC分类号： G08B23/00
CPC分类号： G08B23/00
摘要： A passenger screening device includes a transmission coil that is configured to apply radio frequency (RF) energy into a region of interest of a passenger at a frequency that is associated with a normal human body temperature, and a reception coil that is configured to detect an energy perturbation in response to the RF energy representative of a medical device on or within the passenger.
摘要翻译： 乘客筛选装置包括：传输线圈，其被配置为以与正常人体温度相关联的频率将射频（RF）能量施加到乘客的感兴趣区域;以及接收线圈，被配置为检测 响应于代表在乘客上或内部的医疗设备的RF能量的能量扰动。
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3.发明授权
公开(公告)号：US5986455A
公开(公告)日：1999-11-16
申请号：US894950
申请日：1997-09-03
申请人： Erik E. Magnuson
发明人： Erik E. Magnuson
CPC分类号： G01R33/3628 , G01R33/441 , G01R33/583
摘要： Apparatus for tuning a system for detecting a target substance through the use of nuclear quadrupole resonance (NQR) or nuclear magnetic resonance (NMR). The apparatus tunes an RF coil (34) which is employed to excite the substance under test. The tuning apparatus (36) includes a series of fixed value capacitors (93) switched in the tuning circuit by controllable switches (94). A programmable controller (21) is employed to control the switching and thereby the tuning of the coil.
摘要翻译： PCT No.PCT / US96 / 03075 Sec。 371日期：1997年9月3日 102（e）日期1997年9月3日PCT 1996年3月5日PCT公布。 WO96 / 27803 PCT出版物 日期1996年9月12日通过使用核四极共振（NQR）或核磁共振（NMR）来调谐用于检测目标物质的系统的装置。 该装置调节用于激发被测物质的RF线圈（34）。 调谐装置（36）包括通过可控开关（94）在调谐电路中切换的一系列固定值电容器（93）。 采用可编程控制器（21）来控制线圈的切换和调谐。
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4.发明授权
公开(公告)号：US5818228A
公开(公告)日：1998-10-06
申请号：US848535
申请日：1997-04-28
CPC分类号： G01R33/44 , G01N24/085
摘要： The resin content of an organic resin-matrix composite material is measured nondestructively by nuclear magnetic resonance. A specimen of the composite material is placed into a constant magnetic field and subjected to a radio-frequency magnetic field pulse. The response of the material is indicative of the amount of organic resin that is present. The response may be used as a feedback signal to control the operation of a manufacturing machine.
摘要翻译： 有机树脂基复合材料的树脂含量通过核磁共振无损检测。 将复合材料的样品置于恒定磁场中并进行射频磁场脉冲。 材料的响应表示存在的有机树脂的量。 响应可以用作反馈信号以控制制造机器的操作。
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5.发明授权Active Q-damping sub-system using nuclear quadrupole resonance and nuclear magnetic resonance for improved contraband detection 有权使用核四极共振和核磁共振的主动Q-阻尼子系统改进违禁品检测公开(公告)号：US06291994B1
公开(公告)日：2001-09-18
申请号：US09483090
申请日：2000-01-14
IPC分类号： G01V300
CPC分类号： G01R33/441 , G01N24/084
摘要： A Q-damping subsystem for either an NQR or NMR contraband detection receiver for effectively reducing the dead time and increasing sensitivity of the contraband detection system. The invention acts as an addition to the standard transmit circuits of NQR and NMR based scanners and spectrometers. The active Q-damping devices require additional circuitry for an NQR/NMR detection receiver and a programming for the control thereof. Typically, the detection receiver generates a high-voltage RF pulse on the order of 200-1000 V with normal operation of 100-300 microseconds in length to provide sufficient magnetic field characteristics to perturb the precessing nuclei. The NQR or NMR detection receiver electronics are very sensitive and have to detect a very weak nuclear induction pulse signal that is in the nano/micro-volt range. The invention encompasses several embodiments of the detection receiver with the Q-damping subsystem which include: a transformer coupled resistive damping circuit; an inductively coupled resistive damping circuit; a shunt capacitor/resistor damping circuit; a grounded shunt capacitor/resistor damping circuit; a common mode choke transient suppression damping circuit; a multi-stage Q-damping circuit; and a full-wave Q-damping circuit.
摘要翻译： 用于NQR或NMR违禁检测接收器的Q-阻尼子系统，用于有效减少违禁检测系统的死区时间和增加敏感度。 本发明作为NQR和NMR扫描仪和光谱仪的标准传输电路的补充。 有源Q阻尼器件需要用于NQR / NMR检测接收器的附加电路和用于其控制的编程。 通常，检测接收器产生大约200-1000V的高压RF脉冲，其长度为100-300微秒的正常操作，以提供充分的磁场特性来扰乱进动中的核。 NQR或NMR检测接收器电子器件非常敏感，必须检测处于纳/微伏范围的非常弱的核感应脉冲信号。 本发明包括具有Q-阻尼子系统的检测接收机的几个实施例，其包括：变压器耦合的阻性阻尼电路; 电感耦合电阻阻尼电路; 分流电容器/电阻器阻尼电路; 接地分流电容器/电阻器阻尼电路; 共模扼流圈瞬态抑制阻尼电路; 多级Q-阻尼电路; 和全波Q阻尼电路。
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6.发明授权System and method for contraband detection using nuclear quadrupole resonance including a sheet coil and RF shielding via waveguide below cutoff 失效使用核四极共振（包括片状线圈和RF屏蔽通过波导低于截止值）进行违禁检测的系统和方法
公开(公告)号：US5592083A
公开(公告)日：1997-01-07
申请号：US400679
申请日：1995-03-08
CPC分类号： G06K9/3241 , G01R33/441 , G01N24/084
摘要： A system for detecting a target substance within a class of explosives and narcotics containing quadrupolar nuclei through the use of nuclear quadrupole resonance (NQR). The system applies an RF signal to a coil to excite the substance under test. If the target material is present, an NQR signal will be picked up by the same coil. That signal is compared with known NQR signals in frequency and amplitude. A signal is displayed in an appropriate way if a threshold value of the NQR signal is equalled or exceeded. The coil is tuned by means of an auto-tune feature. Effective RFI shielding is provided to prevent external contaminating signals from being detected by the coil and to prevent RF signals from escaping from the scanner. The invention also includes the method for performing tests with the system.
摘要翻译： 一种通过使用核四极共振（NQR）检测一类爆炸物和含有四极核的麻醉剂的目标物质的系统。 系统将RF信号施加到线圈以激发被测物质。 如果目标材料存在，则NQR信号将被相同的线圈拾取。 该信号与已知的频率和幅度的NQR信号进行比较。 如果NQR信号的阈值相等或超过，则以适当的方式显示信号。 线圈通过自动调谐功能进行调谐。 提供有效的RFI屏蔽以防止线圈检测到外部污染信号，并防止RF信号从扫描仪中逸出。 本发明还包括用该系统进行测试的方法。
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7.发明授权
公开(公告)号：US5594338A
公开(公告)日：1997-01-14
申请号：US400673
申请日：1995-03-08
申请人： Erik E. Magnuson
发明人： Erik E. Magnuson
CPC分类号： G01R33/3628 , G01R33/441 , G01R33/583
摘要： Apparatus for tuning a system for detecting a target substance through the use of nuclear quadrupole resonance (NQR) or nuclear magnetic resonance (NMR). The apparatus tunes an RF coil which is employed to excite the substance under test. The tuning apparatus includes a series of fixed value capacitors switched in the tuning circuit by controllable switches. A programmable controller is employed to control the switching and thereby the tuning of the coil.
摘要翻译： 用于通过使用核四极共振（NQR）或核磁共振（NMR）来调谐用于检测目标物质的系统的装置。 该装置调节用于激发待测物质的RF线圈。 调谐装置包括通过可控开关在调谐电路中切换的一系列固定值电容器。 采用可编程控制器来控制线圈的切换和调谐。
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8.发明授权公开(公告)号：US06194898B1
公开(公告)日：2001-02-27
申请号：US08913086
申请日：1997-09-05
IPC分类号： G01V300
CPC分类号： G06K9/3241 , G01N24/084 , G01R33/441
摘要： A system for detecting a target substance within a class of explosives and narcotics containing quadrupolar nuclei through the use of nuclear quadrupole resonance (NQR). The system applies an RF signal to a coil (34) to excite the substance under test. If the target material is present, an NQR signal will be picked up by the same coil, That signal is compared with known NQR signals in frequency and amplitude. A signal is displayed in an appropriate way if a threshold value of the NQR signal is equalled or exceeded. The empty coil is statically tuned by means of adjusting the location or capacitance values, or both, of static tuning capacitors (102) in the coil. The coil is tuned after the specimen is inserted into the coil by means of an auto-tune feature (36). Effective RFI shielding (37) is provided to prevent external contaminating signals from being detected by the coil and to prevent RF signals from escaping from the scanner. The invention also includes the method for performing tests with the system.
摘要翻译： 一种通过使用核四极共振（NQR）检测一类爆炸物和含有四极核的麻醉剂的目标物质的系统。 系统将RF信号施加到线圈（34）以激发被测物质。 如果目标材料存在，则NQR信号将被相同的线圈拾取，该信号与已知的NQR信号在频率和幅度上进行比较。 如果NQR信号的阈值相等或超过，则以适当的方式显示信号。 通过调节线圈中的静态调谐电容器（102）的位置或电容值（或两者）来静态调谐空线圈。 在通过自动调谐特征（36）将样本插入线圈之后，线圈被调谐。 提供有效的RFI屏蔽（37）以防止线圈检测到外部污染信号，并防止RF信号从扫描仪中逸出。 本发明还包括用该系统进行测试的方法。
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