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公开(公告)号：US07352179B2
公开(公告)日：2008-04-01
申请号：US11262658
申请日：2005-10-31
Applicant: Quan Chen , Bruce Balcom
Inventor： Quan Chen , Bruce Balcom
IPC: G01V3/00
CPC classification number: G01R33/44 , G01N24/08 , G01N24/081 , G01N2015/0813 , G01R33/54
Abstract: A method and apparatus are provided for measuring a parameter such as capillary pressure in porous media such as rock samples. The method comprises mounting a sample in a centrifuge such that different portions of the sample are spaced at different distances from the centrifuge axis, rotating the sample about the axis, measuring a first parameter in the different portions of the sample, and determining the value of a second parameter related to the force to which each portion is subjected due to rotation of the sample. In one embodiment, the first parameter is relative saturation of the sample as measured by MRI techniques, and the second parameter is capillary pressure.
Abstract translation: 提供了一种用于测量诸如岩石样品的多孔介质中诸如毛细管压力之类的参数的方法和装置。 该方法包括将样品安装在离心机中，使得样品的不同部分与离心机轴线不同的距离间隔开，使样品围绕轴线旋转，测量样品的不同部分中的第一参数， 与由于样品的旋转而使每个部分受到的力相关的第二参数。 在一个实施例中，第一参数是通过MRI技术测量的样品的相对饱和度，第二参数是毛细管压力。
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公开(公告)号：US20060116828A1
公开(公告)日：2006-06-01
申请号：US11262658
申请日：2005-10-31
Applicant: Quan Chen , Bruce Balcom
Inventor： Quan Chen , Bruce Balcom
IPC: G06F19/00
CPC classification number: G01R33/44 , G01N24/08 , G01N24/081 , G01N2015/0813 , G01R33/54
Abstract: A method and apparatus are provided for measuring a parameter such as capillary pressure in porous media such as rock samples. The method comprises mounting a sample in a centrifuge such that different portions of the sample are spaced at different distances from the centrifuge axis, rotating the sample about the axis, measuring a first parameter in the different portions of the sample, and determining the value of a second parameter related to the force to which each portion is subjected due to rotation of the sample. In one embodiment, the first parameter is relative saturation of the sample as measured by MRI techniques, and the second parameter is capillary pressure.
Abstract translation: 提供了一种用于测量诸如岩石样品的多孔介质中诸如毛细管压力之类的参数的方法和装置。 该方法包括将样品安装在离心机中，使得样品的不同部分与离心机轴线不同的距离间隔开，使样品围绕轴线旋转，测量样品的不同部分中的第一参数， 与由于样品的旋转而使每个部分受到的力相关的第二参数。 在一个实施例中，第一参数是通过MRI技术测量的样品的相对饱和度，第二参数是毛细管压力。
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3.发明授权公开(公告)号：US09304179B1
公开(公告)日：2016-04-05
申请号：US13571691
申请日：2012-08-10
Applicant: Dan Xiao , Bruce Balcom
Inventor： Dan Xiao , Bruce Balcom
IPC: G01R33/54
CPC classification number: G01R33/546 , G01R33/4816 , G01R33/4824
Abstract: An MRI sampling method combining phase and frequency encoding.
Abstract translation: 组合相位和频率编码的MRI采样方法。
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公开(公告)号：US09702953B1
公开(公告)日：2017-07-11
申请号：US13572153
申请日：2012-08-10
Applicant: Dan Xiao , Bruce Balcom
Inventor： Dan Xiao , Bruce Balcom
IPC: G01R33/56 , G01R33/561 , G01R33/48 , G01N24/08
CPC classification number: G01R33/56 , G01N24/081 , G01R33/4816 , G01R33/4818 , G01R33/50 , G01R33/561 , G01R33/5611 , G01R33/5619
Abstract: A method of sampling in pure phase encode MRI including restricting sampled points to a specified region.
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5.发明授权公开(公告)号：US11486949B1
公开(公告)日：2022-11-01
申请号：US16983042
申请日：2020-08-03
Applicant: Bryce MacMillan , Bruce Balcom , Razieh Enjilela , Armin Afrough
Inventor： Bryce MacMillan , Bruce Balcom , Razieh Enjilela , Armin Afrough
IPC: G01R33/50
Abstract: A T1-T2* measurement which permits speciation of different components with restricted mobility in samples where a T1-T2 measurement is impossible is disclosed. Tracking the T1-T2* coordinate, and associated signal intensity changes, can reveal additional structural and/or dynamic information such as phase changes in rigid/semi-rigid biopolymer samples or pore level changes in morphology of the water environments in cement-based materials. In another aspect, the T1-T2* measurement may also be employed to discriminate composition in solid mixtures, a very significant analytical problem in industry. In a further aspect, the T1-T2* measurement has particular value in permitting a simple assignment of T1 to different T2* populations.
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Patent Agency Ranking
公开(公告)号：US08717022B2
公开(公告)日：2014-05-06
申请号：US13003509
申请日：2009-07-08
Applicant: Hui Han , Bruce Balcom
Inventor： Hui Han , Bruce Balcom
IPC: G01V3/00
CPC classification number: G01R33/58 , G01R33/243 , G01R33/56341 , G01R33/56518
Abstract: A method based on pure phase encode FIDs that permits high strength gradient measurement is disclosed. A small doped water phantom (1˜3 mm droplet, T1, T2, T2*
Abstract translation: 公开了一种基于允许高强度梯度测量的纯相编码FID的方法。 微探针内的小掺杂水体（1〜3mm液滴，T1，T2，T2 * <100μs）被一系列紧密间隔的宽带射频脉冲激发，每个后续的单个FID点采集。 两个试验梯度波形说明了这种技术，这两种都不能通过常规的微探针测量来测量。 第一个是延长的持续时间梯度波形，而另一个示出了该方法测量具有大的净面积和/或高幅度的梯度波形的能力。 该方法是一个点监视器，具有简单的实现和低成本的硬件要求。
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7.发明授权Spatially resolved magnetic resonance spin-spin relaxation distribution measurement methods 有权空间分辨磁共振自旋 - 自旋松弛分布测量方法公开(公告)号：US09389193B1
公开(公告)日：2016-07-12
申请号：US13571954
申请日：2012-08-10
Applicant: Oleg Petrov , Bruce Balcom
Inventor： Oleg Petrov , Bruce Balcom
CPC classification number: G01N24/08 , G01N24/081 , G01R33/446 , G01R33/448 , G01R33/4833
Abstract: A slice-selective CPMG pulse sequence with a DANTE-Z selective scheme for measuring spatially-resolved T2 distributions.
Abstract translation: 具有用于测量空间分辨T2分布的DANTE-Z选择性方案的切片选择性CPMG脉冲序列。
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8.发明申请公开(公告)号：US20130234708A1
公开(公告)日：2013-09-12
申请号：US13866696
申请日：2013-04-19
Applicant: Frederic Goora , Bruce Balcom
Inventor： Frederic Goora , Bruce Balcom
IPC: G01R33/54
CPC classification number: G01R33/54 , G01R33/3852 , G01R33/56572 , G01R33/58
Abstract: Method for correcting the magnetic field gradient waveform in a magnetic resonance measurement including extracting an impulse response from the measured step response of a magnetic resonance system, determining the slew rate of the system during the step response measurement, modifying the desired output waveform such that the desired output waveform is constrained to within the slew rate and the bandwidth of the system, and determining the required pre-equalized input waveform.
Abstract translation: 一种用于校正磁共振测量中的磁场梯度波形的方法，包括从所述测量的磁共振系统的阶跃响应中提取脉冲响应，确定在所述阶跃响应测量期间所述系统的转换速率，修改所述期望的输出波形， 期望的输出波形被限制在系统的压摆率和带宽内，并且确定所需的预均衡输入波形。
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公开(公告)号：US20110181284A1
公开(公告)日：2011-07-28
申请号：US13003509
申请日：2009-07-08
Applicant: Bruce Balcom , Hui Han
Inventor： Bruce Balcom , Hui Han
IPC: G01R33/44
CPC classification number: G01R33/58 , G01R33/243 , G01R33/56341 , G01R33/56518
Abstract: A method based on pure phase encode FIDs that permits high strength gradient measurement is disclosed. A small doped water phantom (1˜3 mm droplet, T1, T2, T2*
Abstract translation: 公开了一种基于允许高强度梯度测量的纯相编码FID的方法。 微探针内的小掺杂水体（1〜3mm液滴，T1，T2，T2 * <100μs）被一系列紧密间隔的宽带RF脉冲激发，每个随后是单次FID点采集。 两个试验梯度波形说明了这种技术，这两种都不能通过常规的微探针测量来测量。 第一个是延长的持续时间梯度波形，而另一个示出了该方法测量具有大的净面积和/或高幅度的梯度波形的能力。 该方法是一个点监视器，具有简单的实现和低成本的硬件要求。
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10.发明申请公开(公告)号：US20060066310A1
公开(公告)日：2006-03-30
申请号：US11232904
申请日：2005-09-23
Applicant: Bruce Balcom , Andrew Marble , Igor Mastikhin , Bruce Colpitts
Inventor： Bruce Balcom , Andrew Marble , Igor Mastikhin , Bruce Colpitts
IPC: G01V3/00
CPC classification number: G01R33/3808
Abstract: A unilateral NMR sensor comprising a ferromagnetic yoke; a permanent magnet arranged on the yoke; a pole piece on the magnet; the pole piece including an air-pole piece interface surface whose shape corresponds to an equipotential contour of magnetic scalar potential
Abstract translation: 单侧NMR传感器，包括铁磁轭; 设置在轭架上的永磁体; 磁铁上的极片; 所述极片包括空气极片接口表面，其形状对应于磁标量势的等电位轮廓
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