Simulation method and system for nuclear magnetic resonance relaxation spectrum analysis based on numerical simulation technology

Abstract

The present invention proposes a simulation NMR relaxation spectrum analysis method based on numerical simulation technology. The method includes: constructing a simulated sample information model; constructing relaxation device hardware parameters; constructing a measurement sequence physical model; The information model of the simulated sample, the hardware parameters related to the relaxation analysis, and the physical model of the measurement sequence are combined to construct the physical and mathematical model of NMR relaxation data acquisition, and to implement the simulated data acquisition algorithm and program to complete the simulated acquisition of the original data; The data collected in the step is subjected to relaxation spectrum inversion to obtain a relaxation time distribution map. The present invention can be widely used in the supporting virtual experiment training platform of nuclear magnetic resonance relaxation spectrum application technology, can also be applied to the self-study technical principles of application personnel in the field of related relaxation spectrum analysis technology, and can also be used for instrument development and test calibration; samples Test spectrum reference; data source for relaxation spectrum inversion research, etc.

Description

technical field [0001] The invention relates to the technical field of nuclear magnetic resonance, in particular to a simulation nuclear magnetic resonance relaxation spectrum analysis method and analysis system based on numerical simulation technology. Background technique [0002] At present, nuclear magnetic resonance has formed a three-legged application situation of liquid nuclear magnetic resonance, solid-state nuclear magnetic resonance and nuclear magnetic resonance imaging. However, in addition to the above-mentioned important applications in the chemical and medical fields, nuclear magnetic resonance has gradually entered the petroleum industry, rubber industry, food, agriculture, textiles, building materials, porous media and other fields to play an increasingly important role in recent years. , Gradually form a new application field of nuclear magnetic resonance analysis and testing. [0003] The field of application of NMR is very broad and is constantly expand...

AI Technical Summary

Problems solved by technology

However, the NMR relaxation spectrum analysis technology involves many NMR technology foundations, especially the sequence technology, coupled with the complexity and variability of the samples to be tested, there are many problems in the use of the instrument and the interpretation of the test data results.

These are due to the fact that practitioners in various fields do not understand the basic principles of NMR relaxation spectroscopy analysis technology, and do not have a clear grasp of the characteristics of relaxation inversion.

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