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A Method for Measuring Three Components of Magnetic Induction Intensity by Optical Pump Three-coil Compensation Method

A technology of magnetic induction intensity and compensation method, which is used in radio wave measurement systems, measurement devices, and electrical/magnetic exploration, etc., to achieve the effects of convenient operation, flexible use and simple structure combination.

Inactive Publication Date: 2011-12-28
710TH RES INST OF CHINA SHIPBUILDING IND CORP
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AI Technical Summary

Problems solved by technology

However, the most commonly used vector magnetic sensors are basically based on the fluxgate principle, and their resolution is about 2nT.

Method used

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  • A Method for Measuring Three Components of Magnetic Induction Intensity by Optical Pump Three-coil Compensation Method
  • A Method for Measuring Three Components of Magnetic Induction Intensity by Optical Pump Three-coil Compensation Method
  • A Method for Measuring Three Components of Magnetic Induction Intensity by Optical Pump Three-coil Compensation Method

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Embodiment Construction

[0013] The invention is mainly composed of a three-coil compensation system and an optical pump system. The optical pump is placed in the uniformity of the three-coil compensation system

[0014] in the district. A three-coil compensation system is used to cancel two components, and the output of the optical pump is used to measure the other component.

[0015] The measuring process of the present invention is as follows:

[0016] (1) Earth magnetic field x component compensation: place the optical pump in the uniform area of ​​the compensation coil, adjust the current of the coil in the x direction, since the output of the optical pump = , when the output of the optical pump is minimum, it indicates that the x component compensation is completed;

[0017] (2) Compensation of the y component of the geomagnetic field: place the optical pump in the uniform area of ​​the compensation coil, and adjust the current of the coil in the y direction. Since the output of the optical ...

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Abstract

A method for measuring the three components of magnetic induction intensity with an optical pump three-coil compensation method, mainly using a three-coil compensation system and an optical pump system to form the main body of the measurement equipment, the optical pump is placed in the uniform area of ​​the three-coil compensation system, and the three-coil compensation system is used to offset Two components, the output of the optical pump is used to measure the other component. The invention uses the compensation coil as an auxiliary means, through the compensation of the x component and the y component of the geomagnetic field, and uses the optical pump for measuring the total field to realize the high-precision three-component measurement of the magnetic field, and has the advantages of high resolution, simple structure combination, convenient operation and use Advantages of being flexible.

Description

technical field [0001] The invention belongs to the technical field of magnetic induction intensity measurement, and in particular relates to a method for measuring three components of magnetic induction intensity by using an optical pump three-coil compensation method. Background technique [0002] Magnetic sensors are widely used in oil exploration, aerospace, geological exploration, underwater weapons and other fields, and are mainly used to detect ferromagnetic objects and measure magnetic fields. Regardless of the detection and positioning of magnetic sources, or the high-precision measurement of the geomagnetic field, the requirements for resolution are getting higher and higher. The higher the resolution, the more accurate the detection and positioning, and the more precise the measurement. However, the most commonly used vector magnetic sensors are basically based on the fluxgate principle, and their resolution is about 2nT. The resolution of the current scalar mag...

Claims

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Application Information

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IPC IPC(8): G01V3/40
Inventor 李伟陈正想卢俊杰石超王秀
Owner 710TH RES INST OF CHINA SHIPBUILDING IND CORP
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