Superconducting weak magnetic signal detection magnetometer

Abstract

The invention discloses a superconducting weak magnetic signal detection magnetometer comprising a superconducting quantum interference device (SQUID), a nonmagnetic dewar, a three-dimensional triaxial locator, a magnetic flux lock loop, a micro-control processor, a power supply unit, a data signal processing system and a host. The low-temperature superconducting quantum interference device substitutes a conventional induction coil to act as a magnetometer probe so that sensitivity and measurement depth and precision of the magnetometer are enhanced. The superconducting weak magnetic signal detection magnetometer is one of the latest international weak magnetic signal detection equipment. Compared with a conventional electronic magnetometer, the superconducting weak magnetic signal detection magnetometer is high in resolution, high in precision, high in intellectualization and high in stability, and can be applied to geophysical prospecting work, medical heart and brain magnetic measurement and engineering nondestructive detection.

Description

technical field [0001] The invention belongs to the field of magnetic field detection, in particular to a weak magnetic signal detection device. Background technique [0002] The precision and accuracy of magnetic field data collected by the magnetometer will directly affect the effect of exploration or detection. It is mainly used to measure an important basic parameter of the earth—the geomagnetic field. It is the basic equipment of magnetic prospecting in geophysical prospecting methods. It is widely used in military detection and monitoring (submarine), earthquake prediction, geological mapping, mineral resource exploration, space physics research, archaeology, environmental monitoring, biomagnetism and many other fields. [0003] my country is the first country in history to study the Earth's magnetic field. But in modern times, the technology of magnetometer lags far behind that of Western countries. After the founding of New China, my country's magnetometer technolo...

AI Technical Summary

Problems solved by technology

[0004] The following problems urgently need to be solved in geological survey and exploration: (1) Deep prospecting (metal mines and coal mines): due to the depletion of surface minerals, mineral surveys and exploration require exploration to a depth of more than 1000 meters, and current technical means cannot meet the requirements; ( 2) Oil and gas exploration: the current measurable depth does not meet the requirements; (3) aerial exploration: the current aerial survey methods can only meet the large-scale general survey, but cannot meet the exploration requirements; (4) detection and real-time monitoring of fault structures: landslides, Debris flow, dam failure, gob collapse, bridge collapse, flooding and other accident detection and monitoring technology

However, it cannot directly convert the magnetic field into a measured voltage or current. The magnetic field signal can be converted into a measurable voltage signal only through complex electronic components, namely the magnetic flux locking ring.

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