NQR-imaging
    3.
    发明授权
    NQR-imaging 失效
    NQR-IMAGING

    公开(公告)号:US5229722A

    公开(公告)日:1993-07-20

    申请号:US738593

    申请日:1991-07-31

    IPC分类号: G01R33/44 G01R33/48

    摘要: In an imaging method for spectroscopy of nuclear quadrupole resonances (NQR) with solid samples to which an RF field having a pulse duration t.sub.p with a base amplitude B.sub.10 constant over the sample length for magnetic excitation of NQR with resonance frequencies .omega. and with magnetic moments coupled to the nuclear quadrupole moments is applied and the NQR signal emitting from the sample is time-depentently detected, the RF field is superimposed by a position-dependent field contribution corresponding to a constant gradient B.sub.1.sup.x which yields together with the constant RF field a position-dependent RF field B.sub.1 (x), for each resonance frequency contained in the detected NQR signal the amplitude including its sign is determined, the measurements are carried out at different flip angles.sqroot.3.multidot..gamma..multidot.B.sub.1 (x).multidot.t.sub.p of the excited magnetic moment, the amplitudes including their signs which depend on the flip angle are subjected to a Fourier transformation and finally therefrom the x dependent density distribution of the observed nuclei is reconstructed. The method does without applying of an external B.sub.0 field, so that it can be carried out with a compacter measuring apparatus, in which the sample can also be situated partly outside. Effects of the Zeeman splitting do not have to be taken into consideration.

    摘要翻译: 在具有固体样品的核四极共振(NQR)的成像方法中,具有基本振幅B10的脉冲持续时间tp的RF场在具有谐振频率ω的NQR的磁激励的采样长度上恒定并且具有耦合的磁矩 对于核四极矩施加并且从样本发射的NQR信号被时间依赖地检测到,RF场被叠加与对应于恒定梯度B1x的位置相关的场贡献,其产生与恒定RF场一起位置 - 对于包含在检测到的NQR信号中的每个谐振频率,确定包含其符号的幅度的相关RF场B1(x),在激励磁矩的不同翻转角2ROOT3xγxB1(x)xtp处执行测量, 包括其取决于翻转角的符号的幅度经受傅里叶变换,最后由x依赖的小区进行 重建观察核的精度分布。 该方法没有施加外部B0场,因此可以用其中样品也可以部分位于外部的压缩测量装置进行。 塞曼分裂的影响不必考虑。

    APPARATUS AND METHOD FOR REAL TIME AND REAL FLOW-RATE MEASUREMENT OF MULTI-PHASE FLUIDS
    4.
    发明申请
    APPARATUS AND METHOD FOR REAL TIME AND REAL FLOW-RATE MEASUREMENT OF MULTI-PHASE FLUIDS 审中-公开
    多相流体的实时和实际流量测量的装置和方法

    公开(公告)号:US20120174684A1

    公开(公告)日:2012-07-12

    申请号:US13425064

    申请日:2012-03-20

    申请人: Daniel PUSIOL

    发明人: Daniel PUSIOL

    IPC分类号: G01F1/56

    摘要: A method for measuring flow rate of at least one fluid in a multi-phase fluid comprises: providing a magnetic resonance module through which the fluid phases flow and at least one pre-polarization module of variable effective length upstream of the magnetic resonance module; and conducting, a measurement by: i) setting the pre-polarization module to have a first effective length, ii) applying a RF pulse sequence to the fluid, in the magnetic resonance module, iii) determining the intensity of a pre-determined number of spin echoes produced by the RF pulse sequence, iv) determining a line approximating the attenuation of the intensity during the RF sequence, v) determining slope and y-intercept of the line, vi) determining the ratio of the slope and intercept, vii) applying a calibration between the slope:intercept ratio and multi-phase flow rate so as to determine the flow velocity of the fluid in the multi-phase fluid.

    摘要翻译: 一种用于测量多相流体中的至少一种流体的流速的方法包括:提供磁共振模块,流体相流过的共振模块和磁共振模块上游可变有效长度的至少一个预偏振模块; 并且通过以下步骤进行测量:i)将所述预偏振模块设置为具有第一有效长度,ii)在所述磁共振模块中向所述流体施加RF脉冲序列,iii)确定预定数量的强度 由RF脉冲序列产生的自旋回波,iv)确定逼近RF序列强度衰减的线,v)确定线的斜率和y截距,vi)确定斜率和截距的比率,vii )在斜率:截距比和多相流量之间进行校准,以便确定多相流体中流体的流速。

    Method, sensor elements and arrangement for the detection and/or analysis of compounds simultaneously exhibiting nuclear quadrupolar resonance and nuclear magnetic resonance, or double nuclear quadrupolar resonance
    5.
    发明申请
    Method, sensor elements and arrangement for the detection and/or analysis of compounds simultaneously exhibiting nuclear quadrupolar resonance and nuclear magnetic resonance, or double nuclear quadrupolar resonance 失效
    用于检测和/或分析同时显示核四极共振和核磁共振的化合物的方法,传感器元件和装置,或双核四极共振

    公开(公告)号:US20050202570A1

    公开(公告)日:2005-09-15

    申请号:US10713344

    申请日:2003-11-14

    申请人: Daniel Pusiol

    发明人: Daniel Pusiol

    摘要: The present invention contributes to the resolution of the problem of detecting, for example, plastic explosives, which are not easily detected by conventional inspection techniques, as those based on X-ray apparatuses; or those using more sophisticated means from traces of explosive material which may remain, “contaminating” the external surface of luggage. As regards the first technique, the invention has an additional advantage in that it is fully automatic, that is, it is independent from the operator's ability to interpret low contrast images. As regards the second technology, the main advantage of the present invention consists of its speed and safety when inspecting luggage.

    摘要翻译: 本发明有助于解决例如通过常规检查技术容易地检测到的塑料炸药的问题,如基于X射线设备的那些; 或使用可能残留的易爆材料的更复杂的手段“污染”行李的外表面的那些。 关于第一种技术,本发明具有额外的优点,因为它是全自动的,即独立于操作者解读低对比度图像的能力。 关于第二技术,本发明的主要优点在于检查行李时的速度和安全性。

    Sensor assembly and method for the detection of substances by nuclear quadrupolar resonance (NQR) and in presence of environmental interference
    6.
    发明申请
    Sensor assembly and method for the detection of substances by nuclear quadrupolar resonance (NQR) and in presence of environmental interference 失效
    用于通过核四极共振(NQR)和存在环境干扰检测物质的传感器装配和方法

    公开(公告)号:US20050116716A1

    公开(公告)日:2005-06-02

    申请号:US10972876

    申请日:2004-10-25

    申请人: Daniel Pusiol

    发明人: Daniel Pusiol

    IPC分类号: G01R33/44 G01V3/00

    CPC分类号: G01R33/441 G01N24/084

    摘要: A sensor assembly for the detection of substances by means of nuclear quadrupolar resonance (NQR) and in the presence of environmental interference. The sensor assembly has a transmitter Tx which comprises excitation means which generate excitation signals and a switch connected at the outlet of the Transmitter. A first phase-shifted signal divider/adder is connected to the outlet of the Tx/Rx switch. First and second sensor elements are connected to the respective outlets of the first phase-shifted signal divider/adder. First and second coupling circuits, preferably in common, are connected to the outlet of the first and second sensor elements, respectively. First and second amplifiers are connected to the outlets of the first and second coupling circuits, respectively. First and second bandpass filters are connected to the outlets of the first and second amplifiers, respectively. A second phase-shifted signal divider/adder is connected to the outlets of the first and second bandpass filters, respectively. A receiver Rx is connected to the inlet of the second phase-shifted signal divider/adder. The method associated to the sensor assembly is also disclosed.

    摘要翻译: 一种用于通过核四极共振(NQR)和存在环境干扰检测物质的传感器组件。 传感器组件具有发射器T x x,其包括产生激励信号的激励装置和连接在变送器出口处的开关。 第一个相移信号分频器/加法器连接到开关开关的插座。 第一和第二传感器元件连接到第一相移信号分频器/加法器的相应出口。 优选共同的第一和第二耦合电路分别连接到第一和第二传感器元件的出口。 第一和第二放大器分别连接到第一和第二耦合电路的出口。 第一和第二带通滤波器分别连接到第一和第二放大器的出口。 第二相移信号分频器/加法器分别连接到第一和第二带通滤波器的出口。 接收器R< x>连接到第2移相信号分配器/加法器的入口。 还公开了与传感器组件相关联的方法。

    Apparatus and method for real time and real flow-rate measurement of multi-phase fluids with MRI
    8.
    发明授权
    Apparatus and method for real time and real flow-rate measurement of multi-phase fluids with MRI 有权
    用于具有MRI的多相流体的实时和实际流量测量的装置和方法

    公开(公告)号:US08143887B2

    公开(公告)日:2012-03-27

    申请号:US12749308

    申请日:2010-03-29

    申请人: Daniel Pusiol

    发明人: Daniel Pusiol

    IPC分类号: G01V3/00 G01R33/20

    摘要: A method for measuring flow rate of at least one fluid in a multi-phase fluid comprises: providing a magnetic resonance module through which the fluid phases flow and at least one pre-polarization module of variable effective length upstream of the magnetic resonance module; and conducting a measurement by: i) setting the pre-polarization module to have a first effective length, ii) applying a RF pulse sequence to the fluid in the magnetic resonance module, iii) determining the intensity of a pre-determined number of spin echoes produced by the RF pulse sequence, iv) determining a line approximating the attenuation of the intensity during the RF sequence, v) determining slope and y-intercept of the line, vi) determining the ratio of the slope and intercept, vii) applying a calibration between the slope:intercept ratio and multi-phase flow rate so as to determine the flow velocity of the fluid in the multi-phase fluid.

    摘要翻译: 一种用于测量多相流体中的至少一种流体的流速的方法包括:提供磁共振模块,流体相流过的共振模块和磁共振模块上游可变有效长度的至少一个预偏振模块; 并且通过以下步骤进行测量:i)将所述预偏振模块设置为具有第一有效长度,ii)对所述磁共振模块中的流体施加RF脉冲序列,iii)确定预定数量的旋转的强度 由RF脉冲序列产生的回波,iv)确定近似RF序列期间强度衰减的线,v)确定线的斜率和y截距,vi)确定斜率和截距的比率,vii)应用 斜率:截距比和多相流量之间的校准,以便确定多相流体中流体的流速。

    Device and method for real time direct measurement of the proportion and flow-rate of a multi-component complex fluid
    9.
    发明申请
    Device and method for real time direct measurement of the proportion and flow-rate of a multi-component complex fluid 审中-公开
    用于实时直接测量多组分复合流体的比例和流量的装置和方法

    公开(公告)号:US20060020403A1

    公开(公告)日:2006-01-26

    申请号:US11176613

    申请日:2005-07-07

    申请人: Daniel Pusiol

    发明人: Daniel Pusiol

    IPC分类号: G01F1/00

    摘要: A device for the real time direct measuring of the proportion and flow-rate of the different components which conform a multi-component complex fluid, which device comprises a set of mutually associated control computer, derivation device and electronic measuring device, the derivation device being connected to a plurality of sensor assemblies through which said multi-component complex fluid circulates.

    摘要翻译: 一种用于实时直接测量符合多组分复合流体的不同组分的比例和流速的装置,该装置包括一组相互关联的控制计算机,导出装置和电子测量装置,所述导出装置为 连接到多个传感器组件,所述多组分复合流体通过所述多个传感器组件循环。