Patent ID: 6166542
Filing Date: 2000-12-26
Classification: G01F,G01R

Abstract:
A nuclear magnetic resonance (NMR) gauging device comprising: a means for producing a substantially uniform magnetic field along an axis through a container containing a substance of interest; a means for supplying an oscillating electromagnetic field at one or more fixed frequencies; a supply coil operably connected to the means for supplying such that the supply coil provides an electromagnetic field perpendicular to the axis through the container; and a means for detecting an induced resonance signal in the substance of interest, wherein the supply coil is configured to supply an oscillating electromagnetic field having an amplitude distribution adapted to permit substantially position independent sampling by the means for detecting and wherein the means for detecting is adapted to monitor the amplitude of the induced resonance signal and to provide an output signal corresponding to an amount of the substance present within the container.