Electricity: measuring and testing – Particle precession resonance – Determine fluid flow rate
Reexamination Certificate
2011-05-17
2011-05-17
Shrivastav, Brij B (Department: 2858)
Electricity: measuring and testing
Particle precession resonance
Determine fluid flow rate
C324S309000
Reexamination Certificate
active
07944205
ABSTRACT:
The system for measuring a magnetic resonance signal within a sample (4) placed in a static external magnetic field (H) includes an excitation device (1to3, 6to10) for applying high-intensity radio-frequency pulses at a predetermined emission frequency fein a measurement zone containing the sample (4). The excitation device includes an excitation coil (3) tuned to the predetermined emission frequency feand disposed in the vicinity of the sample (4) in such a way as to produce an electromagnetic field essentially perpendicular to the static external magnetic field (H). The system further includes at least a superconductive-magnetoresistive hybrid sensor (5) including a superconductive loop having a constriction adapted to increase significantly the current density and at least a magnetoresistive sensor placed in the immediate vicinity of said constriction (72) and being separated therefrom by an insulative deposit.
REFERENCES:
patent: 4875010 (1989-10-01), Yokosawa et al.
patent: 5492720 (1996-02-01), Gill et al.
patent: 5825179 (1998-10-01), Sherman et al.
patent: 7378865 (2008-05-01), Taguchi et al.
patent: 7385400 (2008-06-01), Moore
patent: 2010/0137705 (2010-06-01), Jensen et al.
patent: WO 2004/068152 (2004-08-01), None
Pannetier, Myriam et al., “Femtotesla Magnetic Field Measurement with Magnetoresistive Sensors,” Science American Assoc. Adv. Sci USA, vol. 304, No. 5677, pp. 1648-1650, Jun. 11, 2004.
Blümich, B. et al., “The NMR-Mouse: Construction, Excitation, and Applications,” Magnetic Resonance Imaging, vol. 16, No. 5/6, pp. 479-484, Jun. 1998.
Wurm, Martin et al., “Longitudinal detection of pulsed low-frequency, low-temperature nuclear magnetic resonance using a dc SQUID,” Review of Scientific Instruments, vol. 69, No. 3, pp. 1456-1462, Mar. 1998.
Greenberg, Ya. S., “Application of superconducting quantum interference devices to nuclear magnetic resonance,” Reviews of Modern Physics, The American Physical Society, vol. 70, No. 1, pp. 175-222, Jan. 1998.
Pannetier, M. et al., “Ultra-sensitive mixed sensors—Design and performance,” Sensors and Actuators A, vol. 129, No. 1-2, pp. 247-250, Elsevier Sequoia S.A., Lausanne, CH, May 24, 2006.
Fermon Claude
Jacquinot Jacques
Pannetier-Lecoeur Myriam
Scola Joseph
Commissariat a l'Energie Atomique et Aux Energies Alternatives
Shrivastav Brij B
Weingarten Schurgin, Gagnebin & Lebovici LLP
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