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Full tensor magnetic gradient measurement assembly calibration system and calibration method

A technology for measuring components and calibration systems, which is applied in the measurement of magnetic variables, measuring devices, instruments, etc., can solve the problems of inability to provide calibration systems and calibration methods, and achieve the effect of easy implementation, guaranteeing measurement accuracy, and simple and fast operation.

Active Publication Date: 2019-04-16
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a full tensor magnetic gradient measurement component calibration system and calibration method to solve the problem that the prior art cannot provide a simple and efficient calibration system and calibration method The problem

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  • Full tensor magnetic gradient measurement assembly calibration system and calibration method
  • Full tensor magnetic gradient measurement assembly calibration system and calibration method
  • Full tensor magnetic gradient measurement assembly calibration system and calibration method

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Embodiment 1

[0063] Such as figure 1 As shown, this embodiment provides a full tensor magnetic gradient measurement component calibration system 10, and the calibration system 10 includes:

[0064] An excitation source 11, configured to provide an excitation signal;

[0065] A calibration source 12, electrically connected to the excitation source 11, for generating a calibration magnetic field driven by the excitation source 11;

[0066] The non-magnetic turntable 13 is arranged under the calibration source 12 and is used to adjust the angle of the calibration source 12;

[0067] The mounting bracket 14 is arranged on one side of the calibration source 12 for providing a mounting platform;

[0068] A full tensor magnetic gradient measurement component 15 is arranged on the mounting bracket 14 for measuring the magnetic field gradient value generated by the calibration source 12 at the full tensor magnetic gradient measurement component 15;

[0069] The measurement and control component ...

Embodiment 2

[0089] Such as image 3 As shown, this embodiment provides a calibration method for a full tensor magnetic gradient measurement component, the calibration method comprising:

[0090] Set up the full tensor magnetic gradient measurement component calibration system as described in Embodiment 1;

[0091] The calibration source is driven by the excitation source to generate a calibration magnetic field, and the angle of the calibration source is adjusted so that the magnetic moment of the calibration source is perpendicular to the horizontal plane. At this time, the operating current of the calibration source and the calibration source are measured. Calibrate the spatial position relationship between the source and the full tensor magnetic gradient measurement component, so as to obtain the theoretical value of the magnetic field gradient generated by the calibration source at the full tensor magnetic gradient measurement component;

[0092] Rotate the full tensor magnetic gradi...

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Abstract

The invention provides a full tensor magnetic gradient measurement assembly calibration system and a calibration method. The system comprises an excitation source, a calibration source electrically connected to the excitation source for generating a calibration magnetic field under the drive of the excitation source, a non-magnetic turntable arranged below the calibration source for performing angle adjustment on the calibration source, an installation support arranged at one side of the calibration source for providing an installation platform, a full tensor magnetic gradient measurement assembly arranged on the installation support for measuring the magnetic field gradient value generated at the full tensor magnetic gradient measurement assembly by the calibration source, a measurement and control assembly electrically connected to the full tensor magnetic gradient measurement assembly for acquiring and storing the magnetic field gradient value, and an attitude adjusting device arranged at one side of the calibration source for fixing the installation support and performing fixed point rotation on the installation support to achieve attitude adjustment on the full tensor magneticgradient measurement assembly. Thus, the problem that a simple and efficient calibration system and a calibration method cannot be provided in the prior art can be solved.

Description

technical field [0001] The invention relates to the calibration of a full tensor magnetic gradient measurement component, in particular to a calibration system and a calibration method for a full tensor magnetic gradient measurement component. Background technique [0002] The full tensor magnetic gradient describes the change rate information of the magnetic field vector in three-dimensional space, that is, the gradient of the three components of the magnetic field vector in three directions in space. The measurement results of the full tensor magnetic gradient have the advantages of being less affected by the magnetization direction, can reflect the vector magnetic moment information of the target body, and can better invert the field source parameters (orientation, magnetic moment, etc.), so it can be used for the field source Carry out positioning and tracking, and improve the resolution of the magnetic source body. The measurement and application of the full tensor mag...

Claims

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Application Information

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IPC IPC(8): G01R33/00
CPCG01R33/0023
Inventor 伍俊荣亮亮宋正威张国锋张树林邱隆清裴易峰张朝祥尤立星谢晓明
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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