NMR probe for material analysis

US7095230B2 · kind B2 · utility

Assignee

• Bernhard Blumich · DE

Inventors

• Bernhard Blumich · Simmerath, DE
• Michael Bruder · Hamburg, DE
• Martin Klein · Ludwigsburg, DE
• Karl-Heinz Krause · Chemnitz, DE
• Michael Rabkin · Hamburg, DE
• Jürgen Stangenberg · Hamburg, DE
• Vladimir Anferov · Kaliningrad, RU
• Sophia Anferova · Kaliningrad, RU
• Radu Fechete · Iernut, RO

Key dates

• Filing date: Sep 30, 2004
• Grant date: Aug 22, 2006
• Expiry date: Mar 11, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/383
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a unilateral NMR probe for the analysis of a material comprising at least one magnet for generating a constant time-invariant polarization field B0 in the material to be analyzed and current conductors forming a radio frequency oscillation circuit for generating a pulsed radio frequency magnetic excitation field B1 which is superimposed on the polarization field N0 in the material, the circuit conductors are so designed as to provide several adjacent excitation fields B0 with alternatingly oppositely oriented magnetic fields, whereby the current conductors generating each one of the excitation fields have a distance from each other which causes a certain penetration depth in the material to be analyzed and echoes received therefrom provide measurement values which are characteristic for the material being analyzed.