Open magnetic structure including pole pieces forming a V-shape threbetween for high homogeneity in an NMR device
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United States of America Patent
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Mar 11, 1997
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N/A
app pub date -
Sep 26, 1994
filing date -
Sep 30, 1993
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Abstract
The disclosure relates to an open magnetic structure for producing an intense, stable magnetic field, which is amplitude and direction-controlled in a region adjacent to said structure, having at least one magnetic source (4) for producing said magnetic field, characterized in that it also comprises at least one pole piece (5, 6) associated with the magnetic source and having a shape designed so as to control the magnetic field produced. Application to petroleum or oil research in drilled wells and to surface magnetic imaging.
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