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    Direct digital synthesizer and nuclear magnetic resonance instrument using the same
    21.
    发明授权
    Direct digital synthesizer and nuclear magnetic resonance instrument using the same 失效
    直接数字合成器和核磁共振仪使用相同

    公开(公告)号：US08239433B2

    公开(公告)日：2012-08-07

    申请号：US12120385

    申请日：2008-05-14

    Applicant: Minseok Park ,  Michiya Okada ,  Shuya Hagiwara ,  Hideki Tanaka

    Inventor： Minseok Park ,  Michiya Okada ,  Shuya Hagiwara ,  Hideki Tanaka

    IPC: G06F1/02

    CPC classification number: G01R33/3607

    Abstract: A DDS (direct digital synthesizer) remarkably increased in the number of frequencies which can be output while maintaining the phase coherency, and an NMR instrument using such a DDS are provided. A DDS including phase accumulators and a phase-to-amplitude modulator is provided with a plurality of phase accumulators operating with fixed phase implements which are equal to powers of 2, a controller for outputting each bit of a frequency tuning word as control data, a plurality of switches for outputting an output of an associated one of the phase accumulators when an associated one of the control data supplied from the controller is 1 and outputting 0 when the associated one of the control data is 0, and an adder for adding up outputs of the switches.

    Abstract translation: DDS（直接数字合成器）在保持相位一致性的同时可以输出的频率数量显着增加，并且提供使用这种DDS的NMR仪器。 包括相位累加器和相位到幅度调制器的DDS设置有多个相位累加器，其以等于2的功率的固定相位工具操作;控制器，用于输出频率调谐字的每个位作为控制数据; 多个开关，用于当从所述控制器提供的所述控制数据中的相关一个之一输出相关联的一个所述相位累加器的输出，并且当所述控制数据中的相关一个为0时输出0;以及加法器， 的开关。

    NMR probe
    24.
    发明授权
    NMR probe 失效
    NMR探针

    公开(公告)号：US07262600B2

    公开(公告)日：2007-08-28

    申请号：US11483594

    申请日：2006-07-11

    Applicant: Kenji Kawasaki ,  Minseok Park

    Inventor： Kenji Kawasaki ,  Minseok Park

    IPC: G01V3/00

    CPC classification number: G01R33/31

    Abstract: The invention reduces a flow of a heat making an intrusion into an NMR probe, and uniformizes a spatial temperature generated in a sample pipe. A temperature modulated gas is supplied to a thermal anchor temperature modulated gas flow path constituted by a sample pipe insertion port around a sample pipe, and sample pipe insertion port structure bodies. A part of the temperature modulated gas is divided into a thermal anchor temperature modulated gas flow path by a temperature modulated gas division hole, and flows toward a thermal anchor. The thermal anchor is constituted by a porous member having a hole through which a gas can pass, and comes to the same temperature as the temperature modulated gas on the basis of a heat exchange with the temperature modulated gas. Further, since the thermal anchor is provided in a path of a heat flow making an intrusion into the sample pipe from an external portion, it is possible to absorb the heat intruding from the external portion by the temperature modulated gas passing through the thermal anchor, and it is possible to stably keep the temperature of the sample pipe.

    Abstract translation: 本发明减少了入射到NMR探针中的热量流动，并使样品管中产生的空间温度均匀化。 温度调制气体被供给到由样品管周围的试管插入口和试管插入口结构体构成的热锚温度调制气体流路。 温度调制气体的一部分通过温度调制气体分配孔分为热锚温度调制气体流路，并向热锚流动。 热锚由具有孔的多孔构件构成，气体可以通过孔，并且在与调温气体的热交换的基础上达到与调温气体相同的温度。 此外，由于热锚具设置在从外部入侵试样管的热流的路径中，所以可以通过经过热锚的调温气体吸收从外部侵入的热量， 并且可以稳定地保持试管的温度。

    Nuclear magnetic resonance apparatus having a controllable detector
    25.
    发明授权
    Nuclear magnetic resonance apparatus having a controllable detector 失效
    具有可控检测器的核磁共振装置

    公开(公告)号：US07126336B2

    公开(公告)日：2006-10-24

    申请号：US10919327

    申请日：2004-08-17

    Applicant: Minseok Park ,  Michiya Okada ,  Hiroshi Morita

    Inventor： Minseok Park ,  Michiya Okada ,  Hiroshi Morita

    IPC: G01V3/00

    CPC classification number: G01R33/3621

    Abstract: In an NMR apparatus having an analog-to-digital converter for converting the voltage signal V(t) to a digital signal, a reference signal generator for generating reference waves which are digital signals, and a quadrature detector for performing a quadrature detection operation, a detection controller for changing a frequency of ωr of the reference waves or a time interval of Δ which is a time interval between data points of digitized NMR signals and also a time interval between data points of the reference waves during detection is installed and furthermore, a storage device for preserving the voltage signal V(t) converted to a digital amount at least until the quadrature detector or the reference signal generator changes the frequency ωr of the reference waves or the time interval Δ is installed between the analog-digital converter and the quadrature detector.

    Abstract translation: 在具有用于将电压信号V（t）转换为数字信号的模拟 - 数字转换器的NMR装置中，用于产生作为数字信号的参考波的参考信号发生器和用于执行正交检测操作的正交检测器， 用于改变参考波的ω的频率的检测控制器或作为数字化NMR信号的数据点之间的时间间隔的Delta以及检测期间的参考波的数据点之间的时间间隔的Delta的时间间隔，此外， 至少直到正交检测器或参考信号发生器改变参考波的频率ω或时间间隔Delta为止，保持转换成数字量的电压信号V（t）的存储装置，其中，模数转换器和 正交检测器。

    Superconducting magnet
    26.
    发明授权
    Superconducting magnet 失效
    超导磁体

    公开(公告)号：US08233952B2

    公开(公告)日：2012-07-31

    申请号：US12977571

    申请日：2010-12-23

    Applicant: Minseok Park ,  Tsuyoshi Wakuda

    Inventor： Minseok Park ,  Tsuyoshi Wakuda

    IPC: H01B12/00 ,  H01F6/00 ,  H01L29/00

    CPC classification number: G01R33/3815 ,  H01F5/02 ,  H01F6/06

    Abstract: There is provided a superconducting magnet including a superconducting coil, in which the superconducting coil includes: a bobbin; one or more superconducting wires wound around the bobbin in a plurality of turns, each superconducting wire being one or more superconducting filaments embedded in a matrix; and one or more metallic members, each metallic member being in electrical and thermal contact with a plurality of portions of the one or more superconducting wires.

    Abstract translation: 提供了包括超导线圈的超导磁体，其中超导线圈包括：线轴; 一个或多个超导线以多个匝缠绕在线轴上，每个超导线是嵌入矩阵中的一个或多个超导细丝; 和一个或多个金属构件，每个金属构件与一个或多个超导线的多个部分电接触和热接触。

    NMR probe
    29.
    发明申请
    NMR probe 失效

    公开(公告)号：US20070007963A1

    公开(公告)日：2007-01-11

    申请号：US11483594

    申请日：2006-07-11

    Applicant: Kenji Kawasaki ,  Minseok Park

    Inventor： Kenji Kawasaki ,  Minseok Park

    IPC: G01V3/00

    CPC classification number: G01R33/31

    Abstract: The invention reduces a flow of a heat making an intrusion into an NMR probe, and uniformizes a spatial temperature generated in a sample pipe. A temperature modulated gas is supplied to a thermal anchor temperature modulated gas flow path constituted by a sample pipe insertion port around a sample pipe, and sample pipe insertion port structure bodies. A part of the temperature modulated gas is divided into a thermal anchor temperature modulated gas flow path by a temperature modulated gas division hole, and flows toward a thermal anchor. The thermal anchor is constituted by a porous member having a hole through which a gas can pass, and comes to the same temperature as the temperature modulated gas on the basis of a heat exchange with the temperature modulated gas. Further, since the thermal anchor is provided in a path of a heat flow making an intrusion into the sample pipe from an external portion, it is possible to absorb the heat intruding from the external portion by the temperature modulated gas passing through the thermal anchor, and it is possible to stably keep the temperature of the sample pipe.

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