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公开(公告)号：US07701217B2
公开(公告)日：2010-04-20
申请号：US12187691
申请日：2008-08-07
IPC分类号： G01V3/00
CPC分类号： G01R33/34053 , G01R33/34007 , G01R33/34023 , G01R33/34069 , G01R33/34092 , G01R33/3628
摘要： RF electric fields produced by electric potential differences in NMR probe coil windings may penetrate the NMR sample and sample tube causing sensitivity loss and noise in NMR spectroscopy. Counter-wound spiral coils placed on the opposite surfaces of a planar substrate or on two adjacent planar substrates produce electric potentials that minimize the electric field over the sample region, thereby increasing the sensitivity of the NMR probe. Alternatively counter-wound spiral coils placed adjacent to each other on the outer surface of two concentric cylindrical surfaces that surround the NMR sample minimize the electric field over the sample region. The electric potential of the spiral coils is reduced by adjusting a length of at least one coil.
摘要翻译： 通过NMR探针线圈绕组中的电位差产生的RF电场可能渗透NMR样品和样品管，导致NMR光谱中的灵敏度损失和噪声。 放置在平面基板或两个相邻平面基板的相对表面上的反卷绕螺旋线圈产生使得样品区域上的电场最小化的电势，从而增加NMR探针的灵敏度。 或者在围绕NMR样品的两个同心圆柱形表面的外表面上彼此相邻放置的反卷绕螺旋线圈使得样品区域上的电场最小化。 通过调节至少一个线圈的长度来减小螺旋线圈的电位。
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公开(公告)号：US20100033184A1
公开(公告)日：2010-02-11
申请号：US12187691
申请日：2008-08-07
IPC分类号： G01R33/341
CPC分类号： G01R33/34053 , G01R33/34007 , G01R33/34023 , G01R33/34069 , G01R33/34092 , G01R33/3628
摘要： RF electric fields produced by electric potential differences in NMR probe coil windings may penetrate the NMR sample and sample tube causing sensitivity loss and noise in NMR spectroscopy. Counter-wound spiral coils placed on the opposite surfaces of a planar substrate or on two adjacent planar substrates produce electric potentials that minimize the electric field over the sample region, thereby increasing the sensitivity of the NMR probe. Alternatively counter-wound spiral coils placed adjacent to each other on the outer surface of two concentric cylindrical surfaces that surround the NMR sample minimize the electric field over the sample region. The electric potential of the spiral coils is reduced by adjusting a length of at least one coil.
摘要翻译： 通过NMR探针线圈绕组中的电位差产生的RF电场可能渗透NMR样品和样品管，导致NMR光谱中的灵敏度损失和噪声。 放置在平面基板或两个相邻平面基板的相对表面上的反卷绕螺旋线圈产生使得样品区域上的电场最小化的电势，从而增加NMR探针的灵敏度。 或者在围绕NMR样品的两个同心圆柱形表面的外表面上彼此相邻放置的反卷绕螺旋线圈使得样品区域上的电场最小化。 通过调节至少一个线圈的长度来减小螺旋线圈的电位。
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3.发明授权公开(公告)号：US06842004B2
公开(公告)日：2005-01-11
申请号：US10424687
申请日：2003-04-28
申请人： Richard S. Withers , Robert E. Nast
发明人： Richard S. Withers , Robert E. Nast
CPC分类号： G01R33/341 , G01R33/34007 , G01R33/34023 , G01R33/34061 , G01R33/34092
摘要： Improved superconducting coils for a nuclear magnetic resonance probe use capacitive elements that are located in regions further from an active sample volume than magnetic field generating elements to which they are electrically connected. The sample volume is a substantially oblong shape, and the magnetic field generating elements run substantially parallel to the major axis of the shape, while the capacitor elements run perpendicular to the major axis. Gaps between the capacitor elements, and the width of the elements themselves, may increase toward the outside of the coil to minimize electrical discharge. The variation may be according to a monotonic, possibly linear, function. Discharge may also be minimized by using a dielectric cover that, together with a coil substrate, encloses the coil.
摘要翻译： 用于核磁共振探针的改进的超导线圈使用位于比活动样品体积更远的区域的电容元件，而不是与它们电连接的磁场产生元件。 样品体积是基本上长方形的，并且磁场产生元件基本上平行于形状的长轴延伸，而电容器元件垂直于长轴延伸。 电容器元件之间的间隙和元件本身的宽度可能朝向线圈的外部增加以最小化放电。 该变化可以是根据单调的，可能是线性的。 也可以通过使用与线圈基板一起包围线圈的电介质盖来最小化放电。
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公开(公告)号：US5829791A
公开(公告)日：1998-11-03
申请号：US717298
申请日：1996-09-20
申请人： Vincent Y. Kotsubo , Robert E. Nast
发明人： Vincent Y. Kotsubo , Robert E. Nast
IPC分类号： F16L39/00 , F16L59/065 , F16L35/00
CPC分类号： F16L59/065 , F16L39/00 , Y10S285/904
摘要： An insulated dual-bayonet connector is provided. The connector provides simple alignment and connection for both fluid tubes of a fluid recirculation system. The connector is especially useful for closed-cycle systems, but is also useful for open-cycle gas systems where it is desired to vent a gas in a desired location remote from the item to be cooled or heated by the gas.
摘要翻译： 提供一个绝缘双卡口连接器。 连接器为流体再循环系统的两个流体管提供简单的对准和连接。 连接器对于闭环系统特别有用，但也适用于需要在远离被气体被冷却或加热的物品的期望位置排出气体的开放循环气体系统。
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