-
公开(公告)号：US10225019B2
公开(公告)日：2019-03-05
申请号：US14648987
申请日：2013-11-29
Inventor： Jin Mok Kim , YongHo Lee , Hyukchan Kwon , Ki Woong Kim , KwonKyu Yu
IPC: H04B10/508 , H04B10/69 , G01R33/035 , H04B10/60 , H04B10/70 , H04Q11/00 , H03M9/00 , H04Q9/00
Abstract: A digital adjusting signal for adjusting a multi-channel SQUID system is transmitted only to a control circuit module including a SQUID channel selected in an embodiment of the present invention and not transmitted to other modules. Accordingly, the digital adjusting signal is prevented from flowing into all SQUID adjusting channels to minimize noise generated by the digital adjusting circuit of the SQUID channel and to stably control the SQUID sensor without malfunction.
-
2.发明申请SHIELDING APPARATUS, SHIELDING METHOD AND DEMAGNETIZING FOR MEASURING MAGNETIC FIELD 审中-公开屏蔽装置，用于测量磁场的屏蔽方法和去磁公开(公告)号：US20160011278A1
公开(公告)日：2016-01-14
申请号：US14768898
申请日：2013-03-08
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。
-
3.发明公开公开(公告)号：US20240168106A1
公开(公告)日：2024-05-23
申请号：US17991087
申请日：2022-11-21
Inventor： Jeong Hyun Shim , Sang Won Oh , Ki Woong Kim , Kwang Geol Lee
IPC: G01R33/032 , G01R33/00
CPC classification number: G01R33/032 , G01R33/0017 , G01R33/0082
Abstract: Disclosed is a method and apparatus for measuring magnetic field and/or temperature using a diamond nitrogen-vacancy center sensor, and a measuring apparatus based on a diamond nitrogen-vacancy center (DNV) sensor may include: a diamond nitrogen-vacancy center sensor; a frequency synthesizer for generating a first reference signal and a second reference signal; a first microwave generator for generating a first microwave that is frequency modulated according to the first reference signal and causes a first spin transition in the diamond nitrogen-vacancy center sensor; a second microwave generator for generating a second microwave that is frequency modulated according to the second reference signal and causes a second spin transition in the diamond nitrogen-vacancy center sensor; a laser irradiator for applying a laser to excite the spin state of the diamond nitrogen-vacancy center sensor; a power amplifier for combining and amplifying the first microwave and the second microwave to apply to the diamond nitrogen-vacancy center sensor; a detector for detecting a fluorescence signal output from the diamond nitrogen-vacancy center sensor; a reference detector for measuring power of the laser; a differential circuit for outputting the difference between an output signal of the detector and an output signal of the reference detector; a first lock-in amplifier for outputting a result of comparing an output of the differential circuit with the first reference signal, and a second lock-in amplifier for outputting a result of comparing an output of the differential circuit with the second reference signal. Using the apparatus, it is possible to remove an influence of the temperature when measuring the magnetic field, and remove an influence of a change in the magnetic field when measuring the temperature, thereby enabling more precise measurement.
-
公开(公告)号：US12130341B2
公开(公告)日：2024-10-29
申请号：US17991087
申请日：2022-11-21
Inventor： Jeong Hyun Shim , Sang Won Oh , Ki Woong Kim , Kwang Geol Lee
IPC: G01R33/032 , G01R33/00
CPC classification number: G01R33/032 , G01R33/0017 , G01R33/0082
Abstract: Disclosed is a method and apparatus for measuring magnetic field and/or temperature using a diamond nitrogen-vacancy center sensor, and a measuring apparatus based on a diamond nitrogen-vacancy center (DNV) sensor may include: a diamond nitrogen-vacancy center sensor; a frequency synthesizer for generating a first reference signal and a second reference signal; a first microwave generator for generating a first microwave that is frequency modulated according to the first reference signal and causes a first spin transition in the diamond nitrogen-vacancy center sensor; a second microwave generator for generating a second microwave that is frequency modulated according to the second reference signal and causes a second spin transition in the diamond nitrogen-vacancy center sensor; a laser irradiator for applying a laser to excite the spin state of the diamond nitrogen-vacancy center sensor; a power amplifier for combining and amplifying the first microwave and the second microwave to apply to the diamond nitrogen-vacancy center sensor; a detector for detecting a fluorescence signal output from the diamond nitrogen-vacancy center sensor; a reference detector for measuring power of the laser; a differential circuit for outputting the difference between an output signal of the detector and an output signal of the reference detector; a first lock-in amplifier for outputting a result of comparing an output of the differential circuit with the first reference signal, and a second lock-in amplifier for outputting a result of comparing an output of the differential circuit with the second reference signal. Using the apparatus, it is possible to remove an influence of the temperature when measuring the magnetic field, and remove an influence of a change in the magnetic field when measuring the temperature, thereby enabling more precise measurement.
-
Patent Agency Ranking
公开(公告)号：US10060990B2
公开(公告)日：2018-08-28
申请号：US14768898
申请日：2013-03-08
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.
-
6.发明授权公开(公告)号：US09903925B2
公开(公告)日：2018-02-27
申请号：US13921724
申请日：2013-06-19
Inventor： Ki Woong Kim , Seong-Joo Lee , Chan Seok Kang , Seong-min Hwang , Yong-Ho Lee
CPC classification number: G01R33/36 , G01R33/282 , G01R33/307 , G01R33/326 , G01R33/3607 , G01R33/445 , G01R33/4826 , G01R33/62
Abstract: Provided are a low-field nuclear magnetic resonance device and a low-field nuclear magnetic resonance method. The low-field nuclear magnetic resonance device includes a dynamic nuclear polarization (DNP) amplification unit to amplify the nuclear polarization of hydrogen atoms of water using a DNP-possible substance (DNP substance) to provide the amplified nuclear polarization to a measurement target, a sensor unit to measure a magnetic resonance signal of the measurement target using a SQUID sensor or an optically-pumped atomic magnetometer, and a measurement field coil to apply a measurement field to the measurement target. The DNP amplification unit is separated from the measurement target, the sensor unit, and the measurement field coil.
-
7.发明授权公开(公告)号：US09497017B1
公开(公告)日：2016-11-15
申请号：US14946306
申请日：2015-11-19
Inventor： Jin-Mok Kim , Hyukchan Kwon , YongHo Lee , Ki Woong Kim , Kwonkyu Yu
CPC classification number: G01R33/035
Abstract: Provided is signal processing device including superconducting quantum interference device (SQUID) sensors configured to sense a signal for each of a plurality of channels, analog to digital converters (ADC) configured to convert analog signals input to a predetermined number of channels from the SQUID sensors into digital signals by using a clock signal, local oscillators corresponding to the ADCs, respectively and configured to generate the clock signal having a reference clock frequency for an operation of a corresponding ADC, and a controller configured to the local oscillators to enable the reference clock frequency to have a frequency beyond a frequency range available to the SQUID sensor.
Abstract translation: 提供了包括超导量子干涉装置（SQUID）传感器的信号处理装置，其被配置为感测多个通道中的每一个的信号，模数转换器（ADC）被配置为将来自SQUID传感器的输入到预定数量的通道的模拟信号 通过使用时钟信号分别对应于ADC的本地振荡器和被配置为产生具有用于相应ADC的操作的参考时钟频率的时钟信号的数字信号，以及被配置为本地振荡器以使能参考时钟 频率具有超出SQUID传感器可用频率范围的频率。
-
公开(公告)号：US09331841B2
公开(公告)日：2016-05-03
申请号：US14045939
申请日：2013-10-04
Inventor： Jin Mok Kim , Hyukchan Kwon , Yong Ho Lee , Ki Woong Kim
CPC classification number: H04L7/0041 , H03M9/00 , H04L7/0008 , H04L7/0012 , H04L7/0045
Abstract: Provided is a data synchronization apparatus. The data synchronization apparatus includes a signal conversion block converting individual serial digital signals into parallel digital signals in response to a load signal and converting the parallel digital signals into synchronized serial digital signals in response to a synchronization load signal which does not overlap the load signal, a clock/load signal generator outputting a reference load signal for generating the synchronization load signal to the signal conversion block, a multiplexer multiplexing the synchronized serial digital signals, and a first serial-to-parallel (S/P) converting the multiplexed signal into parallel signals.
Abstract translation: 提供了一种数据同步装置。 数据同步装置包括响应于负载信号将各个串行数字信号转换为并行数字信号的信号转换块，并响应于不与负载信号重叠的同步负载信号将并行数字信号转换为同步串行数字信号， 输出用于产生同步负载信号的参考负载信号到信号转换块的时钟/负载信号发生器，多路复用同步的串行数字信号，以及第一串并转换（S / P）转换成多路复用信号 并行信号。
-
公开(公告)号：US08941516B2
公开(公告)日：2015-01-27
申请号：US13691180
申请日：2012-11-30
Inventor： Jin Mok Kim , Hyukchan Kwon , Yong Ho Lee , Ki Woong Kim
CPC classification number: H03M9/00 , G06F13/4295
Abstract: Provided are a signal processing apparatus and a signal processing method. The signal processing method include receiving a serial signal including an information frame including channel information and data information of a corresponding channel, extracting a clock signal from the serial signal, generating a load signal when a clock count reaches a maximum clock count by calculating the clock signal; converting the serial signal to a parallel signal according to the load signal, and changing the maximum clock count by comparing parallel-converted parallel channel information with a load count indicating the number of local signals.
Abstract translation: 提供了一种信号处理装置和信号处理方法。 该信号处理方法包括：接收串行信号，该信号包括信道信息和相应信道的数据信息，从串行信号中提取时钟信号，当时钟计数达到最大时钟计数时产生负载信号，计算时钟 信号; 根据负载信号将串行信号转换为并行信号，并通过将并行转换的并行信道信息与指示本地信号数量的负载计数相比较来改变最大时钟计数。
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.036 seconds)
