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Ultra-low field nuclear magnetic resonance spectrometer and measurement method

A nuclear magnetic resonance spectrometer and nuclear magnetic resonance technology, applied in the direction of using nuclear magnetic resonance spectrum for measurement, magnetic resonance measurement, and magnetic variable measurement, can solve the problems affecting the resolution of nuclear magnetic resonance spectral lines, the cost of large superconducting magnets and the difficulty of manufacturing Increased magnetic field inhomogeneity and other problems, to achieve high coherent control accuracy, eliminate the impact of interfering magnetic noise on measurement, and achieve precise control effects

Pending Publication Date: 2022-03-15
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

However, as the magnetic field increases, the cost and manufacturing difficulty of large superconducting magnets increase sharply, and the inhomogeneity of the magnetic field also increases, which seriously affects the spectral line resolution of nuclear magnetic resonance.

Method used

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  • Ultra-low field nuclear magnetic resonance spectrometer and measurement method
  • Ultra-low field nuclear magnetic resonance spectrometer and measurement method
  • Ultra-low field nuclear magnetic resonance spectrometer and measurement method

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Embodiment Construction

[0041] The invention discloses an ultra-low-field nuclear magnetic resonance spectrometer and a measurement method, which realizes that the ultra-low-field nuclear magnetic resonance spectrometer controlled by a high-precision pulse can reach the magnetic measurement sensitivity of sub-femtotes in a near-zero field, and is a high-precision The pulse control module provides a high precision measurement system.

[0042] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. In the following detailed description, for convenience of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, that one or more embodiments may be practiced without these specific details. A...

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Abstract

The invention provides an ultra-low field nuclear magnetic resonance spectrometer, comprising: a pre-polarization module suitable for pre-polarization of a nuclear magnetic resonance sample; the sample transportation device comprises a transportation pipe and is suitable for a sample pipe in which a nuclear magnetic resonance sample is packaged, and the nuclear magnetic resonance sample moves in the transportation pipe; the pulse control module is suitable for applying a pulse magnetic field to the pre-polarized nuclear magnetic resonance sample; the signal detection module is suitable for detecting a magnetic field generated by the nuclear magnetic resonance sample; the main control module is suitable for executing time sequence control on the operation of the ultra-low field nuclear magnetic resonance spectrometer and collecting and analyzing a magnetic field generated by the nuclear magnetic resonance sample; the sample conveying device further comprises a guide coil which is suitable for generating a uniform guide field so as to control the magnetic field environment where the nuclear magnetic resonance sample is located when the nuclear magnetic resonance sample moves. The invention further provides a nuclear magnetic resonance measurement method.

Description

technical field [0001] The invention relates to the field of nuclear magnetic resonance, in particular to an ultra-low field nuclear magnetic resonance spectrometer and a measurement method. Background technique [0002] Nuclear Magnetic Resonance (NMR) is a basic physical phenomenon in the field of material science. It can be used to obtain information on the composition and structure of matter accurately, rapidly and non-destructively. It is an important material exploration technology in contemporary science. In order to improve the sensitivity, the traditional nuclear magnetic resonance spectrometer is constantly developing in the direction of increasing the magnetic field. However, with the improvement of the magnetic field, the cost and manufacturing difficulty of large superconducting magnets increase sharply, and the inhomogeneity of the magnetic field also increases, which seriously affects the spectral line resolution of nuclear magnetic resonance. [0003] In rec...

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Application Information

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IPC IPC(8): G01R33/46
CPCG01R33/4633
Inventor 江敏李庆王元泓徐旻翔彭新华
Owner UNIV OF SCI & TECH OF CHINA
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