公开(公告)号：US09500609B1

公开(公告)日：2016-11-22

申请号：US13975940

申请日：2013-08-26

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Paul A. Zank

IPC: G01N24/08 ,  G01R33/44

CPC classification number: G01N24/084 ,  G01R33/441

Abstract: A method for detecting target material or explosives using Nuclear Quadrupole Resonance, comprises the steps of providing a sample material to test for a target material. The sample material is then irradiated with a first frequency from a continuous wave signal generator to create at least one sample material return frequency. A return frequency is then measured and it is determined whether the sample material contains the target material by comparing the return frequency to a known target material frequency in a library. The method allows for simultaneous irradiation of sample material and measuring the return frequency of the sample material. The method utilizes NQR to detect explosive material using a power safe for human scanning and testing.

Abstract translation: 使用核四极共振检测靶材料或爆炸物的方法包括提供样品材料以测试目标材料的步骤。 然后从连续波信号发生器以第一频率照射样品材料以产生至少一个样品材料返回频率。 然后测量返回频率，并且通过将归一化频率与库中的已知目标材料频率进行比较来确定样品材料是否包含目标材料。 该方法允许同时照射样品材料并测量样品材料的返回频率。 该方法利用NQR使用电力安全检测爆炸物质进行人体扫描和测试。

公开(公告)号：US09476953B1

公开(公告)日：2016-10-25

申请号：US13975877

申请日：2013-08-26

Applicant: BAE Systems Information And Electronic Systems Integration Inc.

Inventor： Paul A. Zank ,  David H. Herlihy ,  Eldon M. Sutphin ,  Roland A. Gilbert ,  Paul E. Gili

IPC: G01R33/36

CPC classification number: G01N24/084 ,  G01N24/10 ,  G01R33/3607 ,  G01R33/3621

Abstract: A system and method for detecting at least one material under test (MUT) is presented. A Nuclear Quadrupole Resonance (NQR) measurement system includes a waveform generator configured to generate a continuous wave (CW) input signal comprising one or more frequencies. An RF shielded chamber receives the at least one MUT that is carried by a person walking through the chamber. A probe within the chamber illuminates the MUT with the CW signal and simultaneously receives possible NQR emissions from the at least one MUT. A bridge circuit is utilized to cancel the strong excitation CW signal from the generator which would otherwise mask the weak NQR emissions from the MUT that are received and detected by the measurement system. A detector can then detect the MUT based, at least in part, on the resonance signal.

Abstract translation: 提出了一种用于检测至少一种待测材料（MUT）的系统和方法。 核四极共振（NQR）测量系统包括被配置为产生包括一个或多个频率的连续波（CW）输入信号的波形发生器。 RF屏蔽室接收由走过室的人携带的至少一个MUT。 室内的探头用CW信号照亮MUT，同时接收来自至少一个MUT的可能的NQR发射。 使用桥接电路来消除来自发生器的强激励CW信号，否则该信号将掩蔽来自测量系统接收和检测的MUT的弱NQR发射。 然后，检测器至少部分地基于谐振信号来检测MUT。