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SQUID (Superconducting Quantum Interference Device) flux converter device used for detecting magnetic field intensity tensor

A magnetic flux converter and magnetic field strength technology, applied in the field of magnetic measurement, can solve the problems of high cost, high cost of SQUID magnetometer, high cost of use and maintenance, etc., and achieve the effect of cost saving

Active Publication Date: 2017-03-22
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

All three units have obtained very good experimental results. At the same time, SQUID needs to work at low temperature, and the use and maintenance costs are high.
Due to the high cost of each SQUID magnetometer, it will cost a lot to achieve full tensor measurement

Method used

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  • SQUID (Superconducting Quantum Interference Device) flux converter device used for detecting magnetic field intensity tensor
  • SQUID (Superconducting Quantum Interference Device) flux converter device used for detecting magnetic field intensity tensor
  • SQUID (Superconducting Quantum Interference Device) flux converter device used for detecting magnetic field intensity tensor

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] Such as figure 1 As shown, the SQUID flux transformer device for detecting the magnetic field intensity tensor according to the embodiment of the present invention includes: a full tensor copper coil gradiometer, a coupling coil and a SQUID magnetometer.

[0029] First of all, it should be noted that the working environment of the SQUID magnetometer of the present invention is located in a low temperature environment, and the working environment of the full tensor copper coil gradiometer is located in room tempe...

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Abstract

The invention provides a SQUID (Superconducting Quantum Interference Device) flux converter device used for detecting a magnetic field intensity tensor, which comprises a full-tensor copper coil gradient meter, a coupling coil and an SQUID magnetometer, wherein the coupling coil is bidirectionally coupled to the full-tensor copper coil gradient meter and the SQUID magnetometer so as to couple magnetic flux in a copper coil of the full-tensor copper coil gradient meter to a pickup coil of the SQUID magnetometer, the magnetic flux of the copper coil in the full-tensor copper coil gradient meter is converted to the pick-up coil in the SQUID magnetometer, and the magnetic flux is converted into a voltage value so as to enable the SQUID magnetometer to perform measurement. According to the invention, measurement for full-tensor magnetic field gradient data can be realized by using only one SQUID magnetometer, and high-precision magnetic field measurement is realized through an SQUID, so that a magnetic field of an FT (10-15T) level can be measured, and thus the cost is greatly saved.

Description

technical field [0001] The invention relates to the technical field of magnetic measurement, in particular to a SQUID magnetic flux converter device for detecting magnetic field intensity tensor. Background technique [0002] The full tensor magnetic field gradient refers to the amount of change of the three components of the magnetic field vector along the direction of the base of the three-dimensional space. The measurement of the full tensor magnetic field gradient information is composed of a magnetic sensor as a basic unit through a reasonable spatial arrangement and an appropriate connection. The importance of magnetic measurement technology in scientific research, medicine and various sectors of the national economy has become increasingly prominent. According to the different requirements of various magnetic field measurements, magnetic sensors with different advantages and performances emerge in endlessly, such as fluxgate sensors, GMR, GMI, SQUID, nuclear precessi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/035
CPCG01R33/0358
Inventor 王三胜张宁向家兵
Owner BEIHANG UNIV
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