Device for measuring magnetic field gradient tensor and measurement method thereof

A technology of magnetic field gradient and measurement points, which is applied to the size/direction of the magnetic field, magnetic field measurement using electromagnetic devices, magnetic field measurement using the principle of magnetic flux control, etc. It can solve the problems of increasing measurement time and increasing the number of magnetic field measurement points. , to achieve the effect of reducing the required time, shortening the measurement cycle, and improving the measurement accuracy

Inactive Publication Date: 2014-12-17
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

The smaller the baseline distance, the more accurate the theoretical magnetic field gradient tensor value is, but it also means that the number of required magnetic field measurement points increases and the measurement time increases

Method used

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  • Device for measuring magnetic field gradient tensor and measurement method thereof
  • Device for measuring magnetic field gradient tensor and measurement method thereof
  • Device for measuring magnetic field gradient tensor and measurement method thereof

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Embodiment Construction

[0039] The following is a specific implementation manner of the content of the present invention, and the content of the present invention will be further clarified through the specific implementation mode below. Of course, the following specific embodiments are described only to illustrate different aspects of the present invention, and should not be construed as limiting the scope of the present invention.

[0040] Figure 1-a , Figure 1-b It is a structural schematic diagram of the magnetic field detecting device of the present invention. The device for measuring the magnetic field gradient tensor of the present invention includes a support device for placing the measured object and a magnetometer array unit for measuring the magnetic field gradient tensor of the measured object, the magnetometer array unit is arranged in parallel with the support device and Align a certain plane of the measured object, the support device includes a three-axis translation platform for mo...

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Abstract

The invention discloses a device for measuring magnetic field gradient tensor. The device comprises a support device for placing the measured object, and a magnetometer array unit used for measuring the magnetic field gradient tensor of the measured object, wherein the magnetometer array unit is arranged parallel to the support device and aligned with a certain plane of the measured object; the support device comprises a three-axis displacement table used for moving the measured object along the three directions of space coordinates to adjust a space position, and a rotary table horizontally arranged on the three-axis displacement table through a suspension arm; the rotary table is used for rotating the measured object support thereon to adjust the opposite surface and the opposite position thereof opposite to a magnetometer array; the magnetometer array comprise a plurality of magnetometers, a magnetometer support, and a support base for supporting the magnetometer support; the magnetometer support is a frame with a plurality of vertical support bars.

Description

technical field [0001] The invention belongs to the technical field of magnetic measurement, and in particular relates to a magnetic measurement method for measuring the magnetic field distribution around an object to calculate the magnetic field gradient tensor and a device for measuring the magnetic field gradient tensor by using the method. Background technique [0002] The magnetic field gradient tensor has good mathematical properties and is less affected by the magnetization direction. Its characteristic roots and invariants can better invert the field source parameters (orientation, magnetic moment, etc.) and locate and track the field source. Therefore, the application of the magnetic field gradient tensor is more and more extensive, and the research on the measurement technology of the magnetic field gradient tensor is also increasing. [0003] There are two main ways to measure the magnetic field gradient tensor, one is to directly use the magnetic field gradiomete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/022G06F19/00
Inventor 孟立飞刘超波易忠肖琦王斌代佳龙陈金刚
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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