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Atom magnetometer and magnetic field imaging system

A technology of atomic magnetism and magnetic field, applied in the field of precision measurement equipment, which can solve the problems of affecting system stability, low detection accuracy of atomic magnetometer, fluctuation of thermal airflow, etc.

Active Publication Date: 2020-11-24
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Hot air heating requires an external air source, which will generate certain thermal fluctuations and affect system stability
The electric heating method will inevitably introduce certain magnetic field noise due to the heating current and the residual magnetism of the metal material.
Therefore, the heating method of the traditional atomic magnetometer will still introduce interference factors, which will interfere with the magnetic field, resulting in low detection accuracy of the atomic magnetometer

Method used

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  • Atom magnetometer and magnetic field imaging system
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  • Atom magnetometer and magnetic field imaging system

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Embodiment Construction

[0025] In order to facilitate understanding of the present application, the present application will be further described below with reference to the related drawings. The embodiment of the present application is given in the drawings. However, the present application can be implemented in many different forms, is not limited to the embodiments described herein. Conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly.

[0026] All technical and scientific terms used herein are commonly understood by those skilled in the art, unless otherwise defined. The terms used herein in the specification of the present application are merely intended to describe the embodiments of the specific embodiments, and is not intended to limit the present application.

[0027] It will be appreciated that the terms "first", "second", and the like as used herein can be used herein to describe various elements, but these components are n...

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Abstract

The invention relates to an atom magnetometer and a magnetic field imaging system. First wavelength laser and second wavelength laser are formed through a laser light source and a frequency doubling module. The optical power of the first wavelength laser is adjusted through an optical attenuation module, non-magneto-optical heating of an atomic gas chamber is achieved, and the attenuation amount is adjusted for temperature control. And the second wavelength laser enters the atomic gas chamber to realize magnetic field detection. Therefore, an atom magnetometer can realize non-magnetic heatingand atom pumping detection without coupling of heating laser and pumping laser, and the complexity of an optical path is reduced. And one laser light source in a magnetic field imaging system is connected with a plurality of atom magnetometer probes. Through the position information of the plurality of atom magnetometer probes and the detected magnetic field information, accurate positioning of the magnetic field position can be realized so as to realize multidimensional magnetic field space reconstruction.

Description

Technical field [0001] The present application relates to a technical field of precision measurement equipment, and more particularly to an atomic magnetometer and magnetic imaging systems. Background technique [0002] Atom magnetometer is a precision sensor for measuring small magnetic fields. Because atomic magnetometers working conditions do not require ultra-low temperature environment, and having a high magnetic sensitivity, the detection of weak magnetic field, the magnetic detection becoming very weak manner and superconducting quantum interference devices comparable. Atom magnetometer system volume, measured with respect Spacing, power consumption has the advantage that the magnetic imaging field of the brain may be the heart, brain heart to detect very weak magnetic fields caused by currents for coronary heart disease, epilepsy and other diseases is detected, newborn child heart and brain health assessment has important application value. [0003] Mode of operation of m...

Claims

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Application Information

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IPC IPC(8): G01R33/032
CPCG01R33/032
Inventor 冯焱颖李晓杰
Owner TSINGHUA UNIV
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