Electric potential sensor for use in the detection of nuclear magnetic resonance signals
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United States of America Patent
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Apr 12, 2011
Grant Date -
Apr 16, 2009
app pub date -
Jan 24, 2007
filing date -
Feb 3, 2006
priority date (Note) -
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Abstract
The present invention provides nuclear magnetic resonance apparatus comprising means for applying a static magnetic field (H.sub.0) to a sample under investigation, a radio frequency circuit arranged to be inductively coupled to the sample by means of an oscillating magnetic field disposed generally perpendicular to the static magnetic field for applying an excitation signal to the sample, and an electric potential sensor (E.sub.1, E.sub.2) for detecting the excitation of the sample and for generating a detection output. The electric potential sensor comprises an electrode placed generally perpendicular to the axis of the oscillating magnetic field for capacitively coupling the electric potential sensor to the sample.
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