Title:
MEASUREMENT DEVICE AND MEASUREMENT METHOD USING NUCLEAR MAGNETIC RESONANCE METHOD
Document Type and Number:
WIPO Patent Application WO/2008/041361
Kind Code:
A1
Abstract:
A measurement device (300) locally measures current at a particular position
of a sample (115) by using the NMR method. The measurement device includes: a
magnet (113) which applies an electrostatic field to the sample (115); a small-size
RF coil (114) smaller than the sample (115), which coil applies an oscillation
magnetic field for excitation to the sample (115) and acquires an NMR signal generated
at a particular position of the sample (115); and a current calculation unit (303)
which calculates a difference between the frequency of the NMR signal acquired
by the small-size RF coil (114) and the frequency of the excitation oscillation
magnetic field and calculates the current at the particular position of the sample
(115) from the difference.
Inventors:
OGAWA KUNIYASU (JP)
HAISHI TOMOYUKI (JP)
ITO KOHEI (JP)
HAISHI TOMOYUKI (JP)
ITO KOHEI (JP)
Application Number:
PCT/JP2007/001055
Publication Date:
April 10, 2008
Filing Date:
September 28, 2007
Export Citation:
Assignee:
UNIV KEIO (JP)
OGAWA KUNIYASU (JP)
HAISHI TOMOYUKI (JP)
ITO KOHEI (JP)
OGAWA KUNIYASU (JP)
HAISHI TOMOYUKI (JP)
ITO KOHEI (JP)
International Classes:
G01N24/08; G01N24/00
Foreign References:
| JPS60190846A | 1985-09-28 | |||
| JP2007121037A | 2007-05-17 | |||
| JP2007051990A | 2007-03-01 |
Other References:
SCOTT G.C. ET AL.: "Sensitivity of Magnetic Resonance Current-Density Imaging", JOURNAL OF MAGNETIC RESONANCE, vol. 97, 1992, pages 235 - 254, XP000275059
OGAWA K. ET AL.: "Multi NMR Sensor ni yoru Kotai Kobunshi Denkaishitsu Makunai Gansuiryo Bunpu no Real Time Keisoku (Real-time measurement of water-content distribution in PEM under water electrolysis condition using multi-NMR sensor)", DAI 10 KAI NMR MICROIMAGING STUDY GROUP KOEN YOSHISHU, July 2006 (2006-07-01), pages 32 - 35, XP003022107
OGAWA K. ET AL.: "Multi NMR Sensor ni yoru Suidenkai Untenji no PEM-nai Gansuiryo no Bunpu Keisoku (Distribution measurement of water-content in PEM under water electrolysis condition using multi-NMR sensors)", NETSUKOGAKU CONFERENCE KOEN RONBUNSHU, no. 06-2, 23 November 2006 (2006-11-23), pages 245 - 246, XP003022108
OGAWA K. ET AL.: "Kogata Hyomen Coil ni yoru Nenryo Denchiyo Kotai Kobunshi Denkaishitsu Makunai no Suibunshi no Kyokusho Jiko Kakusan Keisu", NETSUKOGAKU CONFERENCE KOEN RONBUNSHU, no. 05-17, 2 November 2005 (2005-11-02), pages 237 - 238, XP003022109
HATADA H. ET AL.: "FEM ni Motozuita MRI Satsuzoji no Nonai RF Denjikai Bunpu", JOURNAL OF MAGNETICS SOCIETY OF JAPAN, vol. 29, no. 3, 1 March 2005 (2005-03-01), pages 364 - 367, XP003022110
BOGDAN BUHAI ET AL.: "Dissimilar Electro-Osmotic Flow and Ionic Current Recirculation Patterns in Porous Media Detected by NMR Mapping Experiments", PHYSICAL REVIEW LETTERS, vol. 96, no. 17, 2006, pages 174501-1 - 174501-4, XP003022111
OGAWA K. ET AL.: "Multi NMR Sensor ni yoru Kotai Kobunshi Denkaishitsu Makunai Gansuiryo Bunpu no Real Time Keisoku (Real-time measurement of water-content distribution in PEM under water electrolysis condition using multi-NMR sensor)", DAI 10 KAI NMR MICROIMAGING STUDY GROUP KOEN YOSHISHU, July 2006 (2006-07-01), pages 32 - 35, XP003022107
OGAWA K. ET AL.: "Multi NMR Sensor ni yoru Suidenkai Untenji no PEM-nai Gansuiryo no Bunpu Keisoku (Distribution measurement of water-content in PEM under water electrolysis condition using multi-NMR sensors)", NETSUKOGAKU CONFERENCE KOEN RONBUNSHU, no. 06-2, 23 November 2006 (2006-11-23), pages 245 - 246, XP003022108
OGAWA K. ET AL.: "Kogata Hyomen Coil ni yoru Nenryo Denchiyo Kotai Kobunshi Denkaishitsu Makunai no Suibunshi no Kyokusho Jiko Kakusan Keisu", NETSUKOGAKU CONFERENCE KOEN RONBUNSHU, no. 05-17, 2 November 2005 (2005-11-02), pages 237 - 238, XP003022109
HATADA H. ET AL.: "FEM ni Motozuita MRI Satsuzoji no Nonai RF Denjikai Bunpu", JOURNAL OF MAGNETICS SOCIETY OF JAPAN, vol. 29, no. 3, 1 March 2005 (2005-03-01), pages 364 - 367, XP003022110
BOGDAN BUHAI ET AL.: "Dissimilar Electro-Osmotic Flow and Ionic Current Recirculation Patterns in Porous Media Detected by NMR Mapping Experiments", PHYSICAL REVIEW LETTERS, vol. 96, no. 17, 2006, pages 174501-1 - 174501-4, XP003022111
Attorney, Agent or Firm:
HAYAMI, Shinji (2-17-16 Ebisu-nishi,Shibuya-k, Tokyo 21, JP)
Download PDF:
Previous Patent: CIGARETTE DISPLAY SYSTEM, FRAME UNIT, TRAY UNIT, MAGAZINE UNIT, AND SLIDER UNIT
Next Patent: DESIGN ASSISTING SYSTEM, METHOD, PROGRAM
Next Patent: DESIGN ASSISTING SYSTEM, METHOD, PROGRAM