公开(公告)号：US11064900B2

公开(公告)日：2021-07-20

申请号：US16085488

申请日：2017-04-03

申请人： KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

发明人： Seong-Joo Lee ,  Kiwoong Kim ,  Jeong-Hyun Shim ,  Kwon-Kyu Yu ,  Seong-min Hwang

IPC分类号： A61B5/055 ,  G01R33/48 ,  G01R33/381 ,  G01R33/32 ,  G01R33/56 ,  A61B5/00 ,  G01R33/24 ,  G01R33/44 ,  G01R33/421

摘要： Provided are an ultra-low field nuclear magnetic resonance device and a method for measuring an ultra-low field nuclear resonance image. The ultra-low field nuclear magnetic resonance device includes an AC power supply configured to supply a current to a measurement target in such a manner the current flows to the measurement target, magnetic field measurement means disposed adjacent to the measurement target, and measurement bias magnetic field generation means configured to apply a measurement bias magnetic field corresponding to a proton magnetic resonance frequency of the measurement target. A vibration frequency of the AC power supply matches the proton magnetic resonance frequency of the measurement target, and the magnetic field measurement means measures a nuclear magnetic resonance signal generated from the measurement target.

公开(公告)号：US20170168121A1

公开(公告)日：2017-06-15

申请号：US15445275

申请日：2017-02-28

申请人： Korea Research Institute of Standards and Science

发明人： Kwon-Kyu YU ,  Kiwoong Kim ,  Hyukchan Kwon ,  Jin-Mok Kim ,  Sang-Kil Lee ,  Yong-Ho Lee

IPC分类号： G01R33/00 ,  F25B9/14 ,  G01R33/035 ,  A61B5/04

CPC分类号： G01R33/007 ,  A61B5/0046 ,  A61B5/04007 ,  A61B5/04008 ,  A61B5/05 ,  F25B9/10 ,  F25B9/145 ,  F25B2309/1412 ,  F25D19/006 ,  G01R33/0076 ,  G01R33/035 ,  G01R33/0354

摘要： A cryocooler superconducting quantum interference (SQUID) system includes a cryocooler including a cold head, a cold head chamber in which the cold head is disposed, a sensor chamber including a SQUID sensor cooled to a low temperature by the cryocooler; and a connection block connecting the cold head and a thermal anchor disposed in the sensor chamber to each other to cool the SQUID sensor in the sensor chamber.

公开(公告)号：US20150268311A1

公开(公告)日：2015-09-24

申请号：US14692258

申请日：2015-04-21

申请人： KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

发明人： Kwon-Kyu Yu ,  Yong-Ho Lee ,  Kiwoong Kim ,  Hyukchan Kwon ,  Jin-Mok Kim ,  Sang-Kil Lee

IPC分类号： G01R33/00 ,  H01L39/02 ,  H01L23/367 ,  G01R1/18 ,  G01R33/035 ,  H01L23/473

CPC分类号： G01R33/007 ,  A61B5/04005 ,  A61B5/05 ,  G01R1/18 ,  G01R33/035 ,  G01R33/0354 ,  H01L23/367 ,  H01L23/473 ,  H01L39/02 ,  H01L2924/0002 ,  H01L2924/00

摘要： An apparatus and a method for indirectly cooling a superconducting quantum interference device (SQUID) are provided. The apparatus includes an outer container extending in a vertical direction; a metallic inner container inserted into the outer container to store a liquid coolant, the metal inner container including a top plate; a SQUID sensor module disposed between a bottom surface of the outer container and a bottom surface of the inner container; a heat transfer pillar adapted to cool the SQUID sensor module, the heat transfer pillar having one end connected to the bottom surface of the inner container and the other end directly or indirectly connected to the SQUID sensor module; a magnetic shield part formed of a superconductor covering a top surface of the SQUID sensor module; and a heat conduction plate being in thermal contact with the other end of the heat transfer pillar.

摘要翻译： 提供了用于间接冷却超导量子干涉装置（SQUID）的装置和方法。 该装置包括沿垂直方向延伸的外容器; 插入外容器中以存储液体冷却剂的金属内容器，金属内容器包括顶板; 设置在所述外容器的底面和所述内容器的底面之间的SQUID传感器模块; 传热柱，用于冷却SQUID传感器模块，传热柱的一端连接到内容器的底表面，另一端直接或间接地连接到SQUID传感器模块; 由覆盖SQUID传感器模块的顶表面的超导体形成的磁屏蔽部分; 并且导热板与传热柱的另一端热接触。

公开(公告)号：US11322288B2

公开(公告)日：2022-05-03

申请号：US16574591

申请日：2019-09-18

申请人： Korea Research Institute of Standards and Science

发明人： Seong Min Hwang ,  Jeong Hyun Shim ,  Ingo Hilschenz ,  Seong-Joo Lee ,  Kiwoong Kim

IPC分类号： H01F27/28 ,  H01F27/10 ,  G01R33/34

摘要： A fluid-cooled electromagnet includes an upper housing, a lower housing vertically aligned with the upper housing, a plurality of pancake coils disposed between the upper housing and the lower housing to be spaced apart from each other and sequentially stacked to have a washer shape, and at least one spacer, disposed between the upper housing and the lower housing, accommodating the pancake coils at regular intervals.

公开(公告)号：US10585151B2

公开(公告)日：2020-03-10

申请号：US15097912

申请日：2016-04-13

申请人： KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

发明人： Kwon-Kyu Yu ,  Yong-Ho Lee ,  Kiwoong Kim ,  Jin-Mok Kim ,  Hyukchan Kwon ,  Sang-Kil Lee

IPC分类号： A61B5/00 ,  G01R33/035 ,  A61B5/04 ,  G01R33/00 ,  G01R33/022

摘要： Superconducting quantum interference device (SQUID) sensor module and a magnetoencephalography (MEG) measuring apparatus. The SQUID sensor module includes a fixed block having one end fixed to the sensor-mounted helmet, a bobbin having one end combined with the other end of the fixed block and having a groove in which a pick-up coil is wound, a bobbin fixing or attachment structure or material fixed to the other end of the fixed block via a through-hole formed in the center of the bobbin, a SQUID printed circuit board (PCB) disposed one an upper side surface of the bobbin and including a SQUID sensor, and a signal line connection PCB inserted into an outer circumferential surface of the fixed block and adapted to transmit a signal detected in the SQUID sensor to an external circuit.

公开(公告)号：US20180330863A1

公开(公告)日：2018-11-15

申请号：US15966904

申请日：2018-04-30

申请人： Korea Research Institute of Standards and Science

发明人： Seong-min Hwang ,  Jeong-Hyun Shim ,  Ingo Hilschenz ,  Seong-Joo Lee ,  Kiwoong Kim

IPC分类号： H01F27/10 ,  H01F7/06 ,  H01F27/22

CPC分类号： H01F27/10 ,  H01F7/06 ,  H01F27/22

摘要： An electromagnet includes insulating cooling plates of a ceramic material which are vertically arranged parallel to each other, washer-shaped insulating center spacers maintained at a constant distance between adjacent insulating cooling plates, pancake coils including Litz wires which are spirally wound on each of the insulating center spacers in the space between the adjacent insulating cooling plates, and a housing which covers at least outer side surfaces of the insulating cooling plates and the pancake coils and provides a coolant to cool the insulating cooling plates.

公开(公告)号：US10028674B2

公开(公告)日：2018-07-24

申请号：US13891533

申请日：2013-05-10

申请人： KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

发明人： Kiwoong Kim ,  Yong-Ho Lee ,  Jin-Mok Kim ,  Hyukchan Kwon ,  Kwon Kyu Yu

IPC分类号： A61B5/055 ,  A61B5/00 ,  G01R33/24 ,  G01R33/44

摘要： Provided are ultra-low-field nuclear-magnetic-resonance myocardial electrical activity detection method and an ultra-low-field nuclear-magnetic-resonance device. The ultra-low-field nuclear-magnetic-resonance device includes magnetic shielding room; a high-sensitivity magnetic field sensor disposed adjacent to a measurement target disposed inside the magnetic shielding room; and a bias magnetic field generating coil for providing an external measurement bias magnetic field, corresponding to a proton magnetic resonance frequency (nuclear magnetic resonance frequency) corresponding to a frequency of periodic myocardial activity of a lesion desired to be measured, to the measurement target. The high-sensitivity magnetic field sensor measures a magnetic resonance signal generated from the measurement target.

公开(公告)号：US20150226813A1

公开(公告)日：2015-08-13

申请号：US14692294

申请日：2015-04-21

申请人： Korea Research Institute of Standards and Science

发明人： Kwon-Kyu Yu ,  Yong-Ho Lee ,  Hyukchan Kwon ,  Jin-Mok Kim ,  Kiwoong Kim ,  Sang-Kil Lee

IPC分类号： G01R33/035 ,  G01R33/00

CPC分类号： G01R33/0354 ,  A61B5/04005 ,  A61B5/05 ,  G01R33/0047 ,  G01R33/0082 ,  H05K7/02

摘要： Provided are a low-temperature cooling apparatus and a superconducting quantum interference device (SQUID) sensor module. The low-temperature cooling apparatus includes an outer container; an inner container disposed inside the outer container, the inner container including a neck portion having a first diameter and a body portion having a second diameter greater than the first diameter; an insert inserted into the neck portion of the inner container; and a plurality of SQUID sensor modules inserted into the body portion of the inner container. Each of the SQUID sensor modules is in the form of a fan-shaped pillar and is fixedly coupled with an inner bottom plate of the inner container.

摘要翻译： 提供低温冷却装置和超导量子干涉装置（SQUID）传感器模块。 低温冷却装置包括外容器; 内部容器，其设置在所述外部容器的内部，所述内部容器包括具有第一直径的颈部部分和具有大于所述第一直径的第二直径的主体部分; 插入到所述内部容器的颈部中的插入件; 以及插入到所述内部容器的主体部分中的多个SQUID传感器模块。 每个SQUID传感器模块都是扇形柱的形式，并与内部容器的内底板固定连接。

公开(公告)号：US20140235996A1

公开(公告)日：2014-08-21

申请号：US14260750

申请日：2014-04-24

申请人： Korea Research Institute of Standards and Science

发明人： Kiwoong Kim ,  Hyukchan Kwon ,  Yong-Ho Lee ,  Kwon-Kyu Yu ,  Jin-Mok Kim

IPC分类号： A61B5/04 ,  A61B6/03 ,  A61B5/055

CPC分类号： A61B5/04011 ,  A61B5/04007 ,  A61B5/04012 ,  A61B5/0402 ,  A61B5/0522 ,  A61B5/055 ,  A61B6/03 ,  G16H50/50

摘要： A method for mapping of myocardial electric activity includes measuring electrocardiogram data or magnetocardiogram data and mapping the degree of electric activity of a myocardial surface using the electrocardiogram data or the magnetocardiogram data. A signal source of the electrocardiogram data or the magnetocardiogram data is a myocardial surface potential that is scalar quantity. The mapping uses a lead-field vector which represents the sensitivity between the myocardial surface potential and the electrocardiogram or magnetocardiogram data, and a modified lead-field vector which combines a constraint matrix with a constraint condition where no potential sources exist in a specific region.

摘要翻译： 用于映射心肌电活动的方法包括使用心电图数据或心电图数据测量心电图数据或磁心图数据并映射心肌表面的电活动程度。 心电图数据或心电图数据的信号源是标量量的心肌表面电位。 映射使用表示心肌表面电位和心电图或磁心图数据之间的灵敏度的引导场向量，以及将约束矩阵与在特定区域中不存在潜在源的约束条件组合的修改的引线域向量。

公开(公告)号：US10162028B2

公开(公告)日：2018-12-25

申请号：US14618535

申请日：2015-02-10

申请人： Korea Research Institute of Standards and Science

发明人： Seong-min Hwang ,  Kiwoong Kim ,  Kwon-Kyu Yu ,  Seong-Joo Lee ,  Jeong-Hyun Shim

IPC分类号： G01R33/44 ,  G01R33/3815 ,  G01R33/32 ,  G01R33/34

摘要： Provided is a low magnetic field and ultra-low magnetic field NMR and MRI apparatus. The low magnetic field and ultra-low magnetic field NMR and MRI apparatus includes a SQUID sensor and a prepolarization magnetic field coil. The prepolarization magnetic field coil generates a prepolarization magnetic field to polarize a sample. The prepolarization magnetic coil generates a counter pulse in a direction opposite to that of the prepolarization magnetic field immediately before or immediately after the prepolarization magnetic field is generated. The counter pulse demagnetizes wanted magnetization including that of the prepolarization magnetic field coil itself.