Variable temperature and variable pressure probe for nuclear magnetic resonance detection, and nuclear magnetic resonance detection method

Abstract

The invention discloses a variable temperature and variable pressure probe for nuclear magnetic resonance detection, and a nuclear magnetic resonance detection method. The probe comprises a nuclear magnetic resonance detection system, a confining pressure applying system, a displacement pressure applying system and a variable temperature system; and the probe can simultaneously or separately realize the nuclear magnetic resonance detection of a test sample under applied confining pressure, applied displacement and variable temperature conditions. The nuclear magnetic resonance detection methodincludes the following steps: installation of the test sample, connection of a nuclear magnetic detection circuit, connection of the confining pressure applying system, connection of the displacementpressure applying system, connection of the variable temperature system, and testing. The probe has the advantages of high pressure resistance, low manufacturing cost and flexibility in testing.

Description

technical field [0001] The invention relates to a variable temperature and variable pressure probe used for nuclear magnetic resonance detection, and belongs to the technical field of nuclear magnetic resonance. Background technique [0002] Nuclear magnetic resonance (Nuclear Magnetic Resonance, NMR for short) refers to a physical process in which the nuclear magnetic moment of a non-zero magnetic moment undergoes Zeeman splitting of the spin energy level under the combined action of a static magnetic field and a radio frequency field, and the nucleus absorbs radio frequency energy. The application range of nuclear magnetic resonance technology is very wide, covering many fields such as biomedicine, chemistry, food, petroleum, and materials. [0003] In the aspect of porous media analysis of materials, it is necessary to place the sample under high temperature and high pressure conditions for NMR detection. Sometimes the ambient temperature is required to reach the range o...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems of low pressure resistance and high manufacturing cost, the present invention discloses a variable temperature and variable pressure probe for nuclear magnetic resonance detection, and its specific technical scheme is as follows:

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