公开(公告)号：US10028674B2

公开(公告)日：2018-07-24

申请号：US13891533

申请日：2013-05-10

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

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

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

Abstract: 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：US20160011278A1

公开(公告)日：2016-01-14

申请号：US14768898

申请日：2013-03-08

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Ki Woong Kim ,  Yong Ho Lee ,  Kwon Kyu Yu ,  Seong-Joo Lee

IPC: G01R33/00 ,  G01R33/025

CPC classification number: G01R33/0076 ,  G01R33/025 ,  H01F13/003 ,  H05K9/0069

Abstract: The present invention relates to a shield apparatus and a shield method for measuring a subtle magnetic field. More specifically, the present invention relates to a shield apparatus having a precise magnetic sensor therein, for shielding an external magnetic field in a subtle magnetic field measurement apparatus including a magnetic field generation apparatus for exciting a sample, the shield apparatus for measuring a subtle magnetic field, including: a shield wall provided with a high-conductivity metal layer of high conductivity being partitioned into a plurality of segments and having a high-frequency shield property and a closed high-permeability soft magnetic layer spaced apart from the high-conductivity metal layer by a predetermined distance, so as to seal a measurement space.

Abstract translation: 本发明涉及一种用于测量微妙磁场的屏蔽装置和屏蔽方法。 更具体地说，本发明涉及一种在其中具有精密磁传感器的屏蔽装置，用于在包括用于激发样品的磁场产生装置的微小磁场测量装置中屏蔽外部磁场，用于测量微妙磁性的屏蔽装置 包括：具有高导电性的高导电性金属层的屏蔽壁被分隔成多个段并具有高频屏蔽特性和与高导电性金属间隔开的封闭的高磁导率软磁性层 层预定距离，以便密封测量空间。

公开(公告)号：US09903927B2

公开(公告)日：2018-02-27

申请号：US13909564

申请日：2013-06-04

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Seong-min Hwang ,  Kiwoong Kim ,  Jin Mok Kim ,  Yong-Ho Lee ,  Chan Seok Kang ,  Kwon Kyu Yu ,  Seong-Joo Lee

IPC: G01V3/00 ,  G01R33/421 ,  A61B5/00 ,  A61B5/055 ,  G01R33/44

CPC classification number: G01R33/421 ,  A61B5/0046 ,  A61B5/055 ,  G01R33/445

Abstract: Provided are an apparatus and a method for canceling magnetic fields. The apparatus includes a magnetic field canceling coil disposed adjacent to an inner wall of a magnetic shield room to surround the entire inner space or a portion of an inner space of the magnetic shield room; and a magnetic field canceling coil driver to supply current to the magnetic field canceling coil. The magnetic field canceling coil cancels a prepolarization magnetic field established on the wall of the magnetic shield room by a prepolarization coil disposed in the center of the magnetic shield room to minimize magnetic interference caused by the magnetic shield room.

公开(公告)号：US11766204B2

公开(公告)日：2023-09-26

申请号：US16608843

申请日：2018-05-04

Applicant: The Korea Research Institute of Standards and Science (“KRISS”)

Inventor： David Burton ,  Kwon Kyu Yu ,  Yong-Ho Lee ,  Hyuk Chan Kwon ,  Jin Mok Kim ,  Sang Kil Lee

IPC: A61B5/245 ,  A61B5/00 ,  G01R33/035 ,  A61B5/243 ,  A61B5/369

CPC classification number: A61B5/245 ,  A61B5/0042 ,  A61B5/243 ,  A61B5/369 ,  A61B5/4064 ,  A61B5/6803 ,  A61B5/6814 ,  G01R33/0358 ,  A61B2562/0223

Abstract: The present invention provides a magnetic monitoring system for imaging, monitoring, scanning or mapping for brain or heart activity of subjects including children and adults, the system comprising of a magnetoencephalographic or magnetocardiographic system incorporating SQUID sensors for measuring brain activity or heart activity, the system including a plurality of Dewar helmets of variable sizes and shapes; and a plurality of monitoring interfaces; wherein the sensor system helmet is moveable by horizontal Dewar rotation. The sensor system includes configurations where the size and shape of helmets in the system may be different to accommodate different sized subjects for monitoring simultaneously.

公开(公告)号：US10060990B2

公开(公告)日：2018-08-28

申请号：US14768898

申请日：2013-03-08

Applicant: Korea Research Institute of Standards and Science

Inventor： Ki Woong Kim ,  Yong Ho Lee ,  Kwon Kyu Yu ,  Seong-Joo Lee

IPC: G01N27/72 ,  G01R33/00 ,  H05K9/00 ,  G01R33/025 ,  H01F13/00

CPC classification number: G01R33/0076 ,  G01R33/025 ,  H01F13/003 ,  H05K9/0069

Abstract: The present invention relates to a shield apparatus and a shield method for measuring a subtle magnetic field. More specifically, the present invention relates to a shield apparatus having a precise magnetic sensor therein, for shielding an external magnetic field in a subtle magnetic field measurement apparatus including a magnetic field generation apparatus for exciting a sample, the shield apparatus for measuring a subtle magnetic field, including: a shield wall provided with a high-conductivity metal layer of high conductivity being partitioned into a plurality of segments and having a high-frequency shield property and a closed high-permeability soft magnetic layer spaced apart from the high-conductivity metal layer by a predetermined distance, so as to seal a measurement space.