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A superconducting full tensor detection device and a superconducting full tensor detection method

The technology of a detection device and detection method, which is applied in the field of magnetic sensors, can solve the problems of complex shape processing, low space utilization rate, and large loss of liquid helium, and achieve the effects of simple structure, reduced cost, and small loss of liquid helium

Active Publication Date: 2020-08-11
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a superconducting full tensor detection device and a superconducting full tensor detection method, which are used to solve the existing problems of the full tensor detection module in the prior art. Complicated processing, low precision, large module volume, low space utilization, large loss of liquid helium, many components, high cost, etc.

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  • A superconducting full tensor detection device and a superconducting full tensor detection method
  • A superconducting full tensor detection device and a superconducting full tensor detection method
  • A superconducting full tensor detection device and a superconducting full tensor detection method

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Embodiment 1

[0052] Such as Figure 5 As shown, the present invention provides a superconducting full tensor detection device, and the superconducting full tensor detection device includes:

[0053] A superconducting full tensor detection unit a, the superconducting full tensor detection unit a respectively performs gradient detection at two orthogonal positions to obtain full tensor information.

[0054] Specifically, the superconducting full tensor detection unit a includes a triangular prism module 1 and three SQUID planar gradiometers.

[0055] More specifically, the triangular prism module 1 is used as a mounting module of the SQUID planar gradiometer, and the triangular prism module 1 includes a top surface OAB, a bottom surface O'A'B', a first orthogonal side surface OO'A'A, The second orthogonal side OO'B'B and the inclined side AA'B'B. The top surface OAB and the bottom surface O'A'B' are right-angled triangles with the same shape and size. In this embodiment, the top surface OA...

Embodiment 2

[0079] Such as Figure 10 As shown, the present invention provides a superconducting full tensor detection device, and the superconducting full tensor detection device includes:

[0080] The first superconducting full tensor detection unit b and the second superconducting full tensor detection unit c, the first superconducting full tensor detection unit b and the second superconducting full tensor detection unit c are arranged orthogonally , gradient detection is performed at two orthogonal positions to obtain full tensor information.

[0081] Specifically, the structure of the first superconducting full tensor detection unit b and the second superconducting full tensor detection unit c is the same as that of the superconducting full tensor detection unit a in Embodiment 1, here I won't go into details one by one.

[0082] Such as Figure 10 As shown, the principle of superconducting full tensor detection performed by the first superconducting full tensor detection unit b and...

Embodiment 3

[0088] Such as Figure 11 As shown, this embodiment provides a superconducting full tensor detection device, which differs from Embodiment 2 in that the two superconducting full tensor detection units in the superconducting full tensor detection device are respectively located at two In different Dewars (cooling separately, so that the Dewar used by each module is smaller, avoiding the use of a large Dewar, which has high cost, large consumption of liquid helium, and larger volume and weight), and Five SQUID planar gradiometers are arranged on the surface of the two superconducting full tensor detection units.

[0089] Specifically, such as Figure 11 As shown, the first superconducting full tensor detection unit b is set in the first Dewar, the first orthogonal side OO'A'A, the second orthogonal side OO'B'B and the inclined side AA'B 'B respectively set up a SQUID planar gradiometer, such as Figure 6 ~ Figure 8 shown. The second superconducting full tensor detection unit...

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Abstract

The invention provides a superconductive full-tensor detection device and method. The device comprises one or two superconductive full-tensor detection units used for carrying out gradient detection at two mutually orthogonal detection positions to acquire the full-tensor information, each superconductive full-tensor detection unit comprises a triangular prism module and three SQUID planar gradiometers, a top surface and a bottom surface of the triangular prism module are right-angled triangles, side surfaces are rectangles, and each SQUID planar gradiometer is arranged at each side surface ofthe triangular prism module. The superconductive full-tensor detection device is employed, gradient detection on the two mutually orthogonal detection positions is respectively carried out, at leastfive gradient components are acquired, and the full-tensor information is acquired through calculation. The superconductive full-tensor detection device is advantaged in that the modules are simple, processing is easy, high is high, the occupation space is small, liquid helium loss is small, a mounting mode is flexible, the device is suitable for multiple application scenes, in a module reuse mode, cost is greatly reduced, orthogonal design is complete, the full-tensor components are directly acquired, the calculation error is small, and measurement precision is high.

Description

technical field [0001] The invention relates to the technical field of magnetic sensors, in particular to a superconducting full tensor detection device and a superconducting full tensor detection method. Background technique [0002] The magnetic sensor based on the Superconducting Quantum Interference Device (SQUID) is the most sensitive magnetic detector known so far, and it is widely used in the detection of weak magnetic fields such as biological magnetic field, abnormal earth magnetic field, and extremely low-field nuclear magnetic resonance. In the field, its detection sensitivity has reached the Feite (10-15 Tesla) level. The full tensor detection system constructed with SQUID devices can detect the tensor information of the weak magnetic field and obtain more abundant source signals. It is a new method of geophysical magnetic detection and has important application value. [0003] The core of using SQUID to detect the full tensor magnetic field is the design of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/022G01R33/035
CPCG01R33/022G01R33/035
Inventor 王永良张树林徐小峰邱隆清张国峰荣亮亮
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI