公开(公告)号：US5320103A

公开(公告)日：1994-06-14

申请号：US775840

申请日：1991-10-15

申请人： Uri Rapoport ,  Richard Panosh

发明人： Uri Rapoport ,  Richard Panosh

IPC分类号： G01R33/38 ,  G01R33/383 ,  G01R33/3875 ,  H01F7/02 ,  A61B5/055

CPC分类号： H01F7/0294 ,  G01R33/383 ,  G01R33/3875 ,  H01F7/0278

摘要： A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting said principal magnet, and a set of auxiliary magnets extending about the periphery of the pole piece. Two such magnet groupings are positioned within a test chamber, separated a spacer, with the magnet groupings and the chamber defining the air gap across which the magnetic field extends. The strength and uniformity of the magnetic field is adjusted by including a second set of auxiliary permanent magnets or a set of electromagnetic shim coils positioned within the air gap surrounding and overtapping a portion of the air gap. Further adjustment of the magnetic field is accomplished shaping the front surfaces of the pole pieces, thus affecting the shape and direction of the resulting magnetic field.

摘要翻译： 用于在气隙的一部分上产生均匀磁场的永磁体组件具有永久磁体分组，其包括第一主磁体，与所述主磁体接触的极片和一组围绕其周边延伸的辅助磁体 极片。 两个这样的磁体分组被定位在测试室内，分离了间隔物，磁体分组和腔室限定磁场延伸的气隙。 通过包括第二组辅助永磁体或位于空气间隙内的一组电磁振动线圈来调节磁场的强度和均匀性，围绕并超越气隙的一部分。 对磁极的前表面进行磁场的进一步调整，从而影响所得磁场的形状和方向。

公开(公告)号：US5166620A

公开(公告)日：1992-11-24

申请号：US610366

申请日：1990-11-07

申请人： Richard L. Panosh

发明人： Richard L. Panosh

IPC分类号： G01R20060101 ,  G01R33/36 ,  G01R33/389

CPC分类号： G01R33/3607 ,  G01R33/389

摘要： An NMR locking mechanism for use with not only electromagnets, superconducting magnets and permanent magnets, but also with ultrahigh energy product magnets such as neodynium. The circuit utilizes a single conversion superheterodyne receiver with a phase locked loop that forms a locking mechanism that depends upon a variable frequency. The resonant frequency of the nuclei is compared to a variable excitation frequency which is adjusted to maintain a control frequency with one unique value of the control frequency being zero at lock.

摘要翻译： 一种NMR锁定机构，不仅可用于电磁铁，超导磁体和永磁体，而且还可与超高能量产品磁铁如钕一起使用。 该电路利用具有锁相环的单个转换超外差接收器，该锁相环形成取决于可变频率的锁定机构。 将核的谐振频率与可变激励频率进行比较，该可变激励频率被调整为在锁定时具有控制频率的一个唯一值为零的控制频率。

公开(公告)号：US4875486A

公开(公告)日：1989-10-24

申请号：US904000

申请日：1986-09-04

申请人： Uri Rapoport ,  Richard Panosh

发明人： Uri Rapoport ,  Richard Panosh

IPC分类号： A61B5/00 ,  A61B5/055 ,  G01R33/46 ,  G01R33/465

CPC分类号： A61B5/6876 ,  A61B5/055 ,  A61B5/14532 ,  A61B5/6826 ,  A61B5/6838 ,  A61B5/6884 ,  G01R33/46 ,  G01R33/465

摘要： There is disclosed herein a nuclear magnetic resonance apparatus for testing body fluids for a constituent, for example, blood for glucose. The apparatus includes a principal magnet, a magnetizable coil, and a circuit for energizing the coil for energizing and realigning molecules and detecting changes resulting from relaxation of said field and analyzing said changes. The apparatus is compact and adapted to receive and test an extremity or vessel carrying a body fluid. The coil is constructed to be positioned adjacent the extremity or vessel to be tested. Circuit means are provided for energizing the coil to energize and realign molecules adjacent said coil, so as to permit molecules adjacent said coil to assume an aligned position and for sensing changes in position when the coil is deenergized, which is indicated by spectra having peaks corresponding to various molecular bonds. The circuit also includes means for comparing the actual value of a peak for a first constituent to a predetermined value for the peak of said first constituent and determining the actual value of a second constituent from a predetermined relationship between the values of the peaks for the first and second constituents. Specifically, predetermined water and glucose peaks are compared with the measured water and glucose peaks for determining the measured glucose concentration.

公开(公告)号：US5462054A

公开(公告)日：1995-10-31

申请号：US221028

申请日：1994-03-31

申请人： Uri Rapoport ,  Richard Panosh

发明人： Uri Rapoport ,  Richard Panosh

IPC分类号： G01R33/38 ,  G01R33/383 ,  G01R33/3875 ,  H01F7/02 ,  A61B5/055

CPC分类号： H01F7/0294 ,  G01R33/383 ,  G01R33/3875 ,  H01F7/0278

摘要： A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting said principal magnet, and a set of auxiliary magnets extending about the periphery of the pole piece. Two such magnet groupings are positioned within a test chamber, separated a spacer, with the magnet groupings and the chamber defining the air gap across which the magnetic field extends. The strength and uniformity of the magnetic field is adjusted by including a second set of auxiliary permanent magnets or a set of electromagnetic shim coils positioned within the air gap surrounding and overtapping a portion of the air gap. Further adjustment of the magnetic field is accomplished shaping the front surfaces of the pole pieces, thus affecting the shape and direction of the resulting magnetic field.

摘要翻译： 用于在气隙的一部分上产生均匀磁场的永磁体组件具有永久磁体分组，其包括第一主磁体，与所述主磁体接触的极片和一组围绕其周边延伸的辅助磁体 极片。 两个这样的磁体分组被定位在测试室内，分离了间隔物，磁体分组和腔室限定磁场延伸的气隙。 通过包括第二组辅助永磁体或位于空气间隙内的一组电磁振动线圈来调节磁场的强度和均匀性，围绕并超越气隙的一部分。 对磁极的前表面进行磁场的进一步调整，从而影响所得磁场的形状和方向。

公开(公告)号：US5072732A

公开(公告)日：1991-12-17

申请号：US427001

申请日：1989-10-23

申请人： Uri Rapoport ,  Richard Panosh

发明人： Uri Rapoport ,  Richard Panosh

IPC分类号： A61B5/00 ,  A61B5/055 ,  G01R33/46 ,  G01R33/465

CPC分类号： A61B5/6876 ,  A61B5/055 ,  A61B5/14532 ,  A61B5/6826 ,  A61B5/6838 ,  A61B5/6884 ,  G01R33/46 ,  G01R33/465

摘要： There is disclosed herein a nuclear magnetic resonance apparatus for testing body fluids for a constituent, for example, blood for glucose. The apparatus includes a principal magnet, a magnetizable coil, and a circuit for energizing the coil for energizing and realigning molecules and detecting changes resulting from relaxation of said field and analyzing said changes. The apparatus is compact and adapted to receive and test an extremity or vessel carrying a body fluid. The coil is constructed to be positioned adjacent the extremity or vessel to be tested. Circuit means are provided for energizing the coil to energize and realign molecules adjacent said coil, so as to permit molecules adjacent said coil to assume an aligned position and for sensing changes in position when the coil is deenergized, which is indicated by spectra having peaks corresponding to various molecular bonds. The circuit also includes means for comparing the actual value of a peak for a first constituent to a predetermined value for the peak of said first constituent and determining the actual value of a second constituent from a predetermined relationship between the values of the peaks for the first and second constituents. Specifically, predetermined water and glucose peaks are compared with the measured water and glucose peaks for determining the measured glucose concentration.

摘要翻译： 这里公开了一种核磁共振装置，用于检测组分的体液，例如用于葡萄糖的血液。 该装置包括主磁体，可磁化线圈和用于激励线圈的电路，用于对分子进行激励和重新对准，并检测由所述场松弛引起的变化并分析所述变化。 该装置紧凑并且适于接收和测试携带体液的末端或血管。 线圈被构造成邻近要测试的末端或容器定位。 提供电路装置用于激励线圈以激励和重新排列与所述线圈相邻的分子，从而允许与所述线圈相邻的分子呈现对准的位置，并且用于在线圈被断电时感测到位置的变化，其由对应于 到各种分子键。 电路还包括用于将第一成分的峰值的实际值与所述第一成分的峰值的预定值进行比较的装置，并根据第一成分的峰值的值之间的预定关系确定第二成分的实际值 和第二个成分。 具体地，将预定的水和葡萄糖峰与测量的水和葡萄糖峰进行比较，以确定测量的葡萄糖浓度。

公开(公告)号：US5063934A

公开(公告)日：1991-11-12

申请号：US277209

申请日：1988-11-29

申请人： Uri Rapoport ,  Richard Panosh

发明人： Uri Rapoport ,  Richard Panosh

IPC分类号： A61B5/055 ,  G01R33/20 ,  G01R33/38 ,  G01R33/383 ,  G01R33/3873 ,  G01R33/3875 ,  H01F7/02

CPC分类号： H01F7/0294 ,  G01R33/383 ,  G01R33/3875 ,  H01F7/0278

摘要： A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting said principal magnet, and a set of auxiliary magnets extending about the periphery of the pole piece. Two such magnet groupings are positioned within a test chamber, separated a spacer, with the magnet groupings and the chamber defining the air gap across which the magnetic field extends. The strength and uniformity of the magnetic field is adjusted by including a second set of auxiliary permanent magnets or a set of electromagnetic shim coils positioned within the air gap surrounding and overtapping a portion of the air gap. Further adjustment of the magnetic field is accomplished shaping the front surfaces of the pole pieces, thus affecting the shape and direction of the resulting magnetic field.

摘要翻译： 用于在气隙的一部分上产生均匀磁场的永磁体组件具有永久磁体分组，其包括第一主磁体，与所述主磁体接触的极片和一组围绕其周边延伸的辅助磁体 极片。 两个这样的磁体分组被定位在测试室内，分离了间隔物，磁体分组和腔室限定磁场延伸的气隙。 通过包括第二组辅助永磁体或位于空气间隙内的一组电磁振动线圈来调节磁场的强度和均匀性，围绕并超越气隙的一部分。 对磁极的前表面进行磁场的进一步调整，从而影响所得磁场的形状和方向。

公开(公告)号：US4994746A

公开(公告)日：1991-02-19

申请号：US403089

申请日：1989-09-05

申请人： Richard L. Panosh

发明人： Richard L. Panosh

IPC分类号： G01N24/00 ,  G01N24/08 ,  G01R33/32 ,  G01R33/36 ,  G01R33/465

CPC分类号： G01R33/3621 ,  G01R33/465

摘要： A true logarithmic amplifier is used in combination with an apparatus for transmitting and receiving signals produced during nuclear magnetic resonance analysis. The true logarithmic amplifier is used to compress the dynamic range of signals produced by the reorientation of excited magnetic dipoles such as those of protons as they return to an aligned, unexcited state, with the compression of the dynamic range avoiding saturation of the amplifier by strong signals and preserving all phase information and hence sideband components of the received signals for processing and analysis.

摘要翻译： 一种真正的对数放大器与用于发射和接收在核磁共振分析期间产生的信号的装置组合使用。 真正的对数放大器用于压缩由激发的磁偶极子（例如质子）重新定向产生的信号的动态范围，因为它们返回到对准的未激励状态，动态范围的压缩避免了放大器饱和强烈 信号并保留接收信号的所有相位信息和因此的边带分量用于处理和分析。