JP6445569B2 - 原子センサ・システムにおける磁場トリム - Google Patents

原子センサ・システムにおける磁場トリム Download PDF

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Publication number
JP6445569B2
JP6445569B2 JP2016544367A JP2016544367A JP6445569B2 JP 6445569 B2 JP6445569 B2 JP 6445569B2 JP 2016544367 A JP2016544367 A JP 2016544367A JP 2016544367 A JP2016544367 A JP 2016544367A JP 6445569 B2 JP6445569 B2 JP 6445569B2
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magnetic field
vapor cell
coil
vapor
field gradient
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JP2017527772A (ja
JP2017527772A5 (https=
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ディ． ブラトビッチ、マイケル
ディ． ブラトビッチ、マイケル
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Northrop Grumman Systems Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/60—Electronic or nuclear magnetic resonance gyrometers
    • G01C19/62—Electronic or nuclear magnetic resonance gyrometers with optical pumping
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/26—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
JP2016544367A 2014-05-05 2015-05-14 原子センサ・システムにおける磁場トリム Active JP6445569B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/269,547 US9829544B2 (en) 2014-05-05 2014-05-05 Magnetic field trimming in an atomic sensor system
PCT/US2015/030829 WO2015172162A1 (en) 2014-05-05 2015-05-14 Magnetic field trimming in an atomic sensor system

Publications (3)

Publication Number Publication Date
JP2017527772A JP2017527772A (ja) 2017-09-21
JP2017527772A5 JP2017527772A5 (https=) 2017-11-02
JP6445569B2 true JP6445569B2 (ja) 2018-12-26

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JP2016544367A Active JP6445569B2 (ja) 2014-05-05 2015-05-14 原子センサ・システムにおける磁場トリム

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US (1) US9829544B2 (https=)
EP (1) EP2989416B1 (https=)
JP (1) JP6445569B2 (https=)
WO (1) WO2015172162A1 (https=)

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US11506730B2 (en) 2019-05-03 2022-11-22 Hi Llc Magnetic field measurement systems including a plurality of wearable sensor units having a magnetic field generator
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US11131729B2 (en) 2019-06-21 2021-09-28 Hi Llc Systems and methods with angled input beams for an optically pumped magnetometer
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GB2588114B (en) * 2019-10-07 2022-04-13 Npl Management Ltd Method and system for generation of atomic spin orientation
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CN111025202B (zh) * 2019-12-23 2021-10-19 之江实验室 一种扫描式立体三维磁场探测方法和装置
US11604236B2 (en) 2020-02-12 2023-03-14 Hi Llc Optimal methods to feedback control and estimate magnetic fields to enable a neural detection system to measure magnetic fields from the brain
US11801003B2 (en) 2020-02-12 2023-10-31 Hi Llc Estimating the magnetic field at distances from direct measurements to enable fine sensors to measure the magnetic field from the brain using a neural detection system
US11980466B2 (en) 2020-02-12 2024-05-14 Hi Llc Nested and parallel feedback control loops for ultra-fine measurements of magnetic fields from the brain using a neural detection system
US11872042B2 (en) 2020-02-12 2024-01-16 Hi Llc Self-calibration of flux gate offset and gain drift to improve measurement accuracy of magnetic fields from the brain using a wearable neural detection system
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US11779250B2 (en) 2020-05-28 2023-10-10 Hi Llc Systems and methods for recording biomagnetic fields of the human heart
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US11428756B2 (en) 2020-05-28 2022-08-30 Hi Llc Magnetic field measurement or recording systems with validation using optical tracking data
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Also Published As

Publication number Publication date
US20150316625A1 (en) 2015-11-05
WO2015172162A1 (en) 2015-11-12
EP2989416A1 (en) 2016-03-02
JP2017527772A (ja) 2017-09-21
EP2989416B1 (en) 2020-11-25
EP2989416A4 (en) 2017-04-05
US9829544B2 (en) 2017-11-28

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