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Integrated measurement method of constant and non-orthogonal angle of three-axis coil

A measurement method and coil constant technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve complex problems and achieve the effect of good measurement accuracy

Active Publication Date: 2017-12-19
BEIHANG UNIV
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Problems solved by technology

However, this method is very complicated. The all-optical atomic spin magnetometer device performs the integrated calibration and measurement of the coil constant and the non-orthogonal angle.
[0004] At present, there is no public report about the method of directly using the all-optical atomic spin magnetometer itself to complete accurate, fast, and simultaneous calibration and measurement of the coil constant and non-orthogonal angle of the three-axis magnetic coil.

Method used

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  • Integrated measurement method of constant and non-orthogonal angle of three-axis coil
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  • Integrated measurement method of constant and non-orthogonal angle of three-axis coil

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Embodiment Construction

[0035] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] Taking a potassium atom magnetometer as an example to specifically illustrate the integrated measurement process of coil constant and non-orthogonal angle by using the method of the present invention.

[0037] An integrated measurement method for three-axis coil constants and non-orthogonal angles, the steps of which are:

[0038] (1) System preparation. Turn on the electric heating system to heat the inside of the alkali metal gas chamber to 180°C. The pump light travels along the z-axis and the detection light travels along the x-axis.

[0039] (2) Start the test. First measure the z-axis coil constant, the steps are:

[0040] (a) Apply an unknown amplitude DC magnetic field to be measured on the z-axis, and apply an AC magnetic field sweep field with an amplitude of 150nT and a frequency of 10kHz to 26kHz in the direction (y direction) perpendicular to ...

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Abstract

The invention discloses an integrated measurement method of a constant and a non-orthogonal angle of a three-axis coil, and belongs to the technical field of optical detection, and magnetic field detection and analysis. Based on a problem that the precision of magnetic fields generated by the three-axis coil directly affect the sensitivity of an ultrahigh sensitivity magnetic field / inertia measurement device based on the non-spin exchange theory, the invention provides the integrated measurement method of the constant and the non-orthogonal angle of three-axis coil based the atomic spin Larmor precession theory. The provided method fills a gap of lack of a rapid and efficient integrated measurement method of the constant and the non-orthogonal angle of a three-axis coil, and provides preconditions and guarantee for the sensitivity of atom magnetometers.

Description

technical field [0001] The invention aims to propose an integrated measurement method for three-axis coil constants and non-orthogonal angles, which belongs to the technical fields of optical detection, magnetic field detection and analysis. Background technique [0002] Magnetic fields objectively exist in nature. The accurate detection of magnetic field can effectively promote the research and development of biomedicine, magnetic resonance imaging, geophysical exploration, basic physics and other fields. Recently, the all-optical atomic spin magnetometer has gradually become one of the main tools for weak magnetic field detection due to its ultra-high magnetic field measurement sensitivity. Among the many components of an all-optical atomic spin magnetometer, the three-axis coil is the most important component. [0003] The three-axis coil is an important component for generating the magnetic field in an all-optical atomic spin magnetometer. For the three-axis coil, in ...

Claims

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Application Information

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IPC IPC(8): G01R35/00
CPCG01R35/00
Inventor 房建成张红刘刚丁铭胡朝晖姚涵马丹跃
Owner BEIHANG UNIV
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