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Superconducting-connection-based device and method for manufacturing axial gradient gauge

A technology of a manufacturing device and a manufacturing method, which is applied in the field of manufacturing devices of axial gradiometers, can solve problems such as restricting the development of a magnetic core system, difficult assembly, damage to a SQUID chip, etc., and achieves the effect of increasing the effective running time and avoiding damage.

Active Publication Date: 2018-04-17
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, the axial gradiometers currently used rely on foreign imports and have not yet achieved complete autonomy, which seriously restricts the further development of the magnetic-cardiometer system.
Moreover, this axial gradiometer realizes the connection between the SQUID chip and the gradient coil by means of nut pressing. In some cases, there will be a weak connection, and the SQUID chip will be damaged due to improper operation.
In addition, during use, because the SQUID chip and the gradient coil are not integrated, it will also cause difficulties in assembly

Method used

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  • Superconducting-connection-based device and method for manufacturing axial gradient gauge
  • Superconducting-connection-based device and method for manufacturing axial gradient gauge
  • Superconducting-connection-based device and method for manufacturing axial gradient gauge

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Embodiment Construction

[0072] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0073] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper"...

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Abstract

The invention provides a superconducting-connection-based device and method for manufacturing an axial gradient gauge. The axial gradient gauge consists of an SQUID chip and a gradient coil. The manufacturing device is composed of a niobium wire annealing device and a niobium wire bonding device. The niobium wire annealing device is used for carrying out annealing on a niobium wire; and the niobium wire bonding device is used for ultrasonic bonding of the niobium wire after annealing to an SQUID chip and the gradient coil to realize the superconducting connection between the chip and the gradient coil. According to the superconducting-connection-based device and method for manufacturing an axial gradient gauge, an integrated axial gradient gauge module is manufactured by means of superconducting connection, so that the performance of the axial gradient gauge is improved substantially.

Description

technical field [0001] The invention relates to the technical field of axial gradiometers, in particular to a manufacturing device and method of an axial gradiometer based on superconducting connections. Background technique [0002] Due to its high sensitivity, non-contact and completely non-invasive features, magnetocardiograph is expected to become a new generation of medical research and clinical diagnostic equipment. The performance of a magnetocardiograph depends on the quality of the detected magnetic signals. The typical value of the cardiomagnetic signal is tens to hundreds of pT (10 -12 T), while the environmental field noise is very strong, such as the typical strength of the earth's magnetic field is 30 ~ 50μT, the urban environmental field noise can reach hundreds of nT. In order to extract extremely weak cardiomagnetic signals from such a strong background magnetic field, not only high-sensitivity magnetic sensors, such as Superconducting Quantum Interference...

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Application Information

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IPC IPC(8): H01L39/24H10N60/01
CPCH10N60/0744
Inventor 孔祥燕杨康王佳磊陈威彭炜
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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