The Pentagon has a problem. China has an effective and cheap submarine detector

"Chinese scientists have achieved a breakthrough in work on a new method of detecting submarines thanks to highly sensitive superconducting quantum devices. Americans will have a hard time hiding.

Information about the research results was published in the scientific journal Cryogenics & Superconductivity. 

 

These are SQUIDs (superconducting quantum interference devices), very sensitive detectors used to measure extremely weak magnetic fields. 

 

These devices work based on the principle of superconductivity, where some materials exhibit zero electrical resistance at low temperatures.

 

Due to their extraordinary sensitivity, SQUIDs are used in various fields, including research, medical diagnostics and submarine detection.

 

A cheap and simple detector in a drone

 

As part of research conducted under the supervision of prof. Zhang Yingzi of the North University of China introduced a simplified design using only one superconducting magnetic gradiometer (a device that can measure magnetic fields and detect anomalies) instead of six, which increases precision.

 

Old detectors had problems with too much interference, making them less sensitive. To improve the detectors, the researchers used a new method called two-dimensional Fourier transform structural optimization. This method transformed complex data into simpler forms, increasing the efficiency and precision of devices. 

 

A more simplified design was introduced, which uses only one superconducting magnetic gradiometer instead of six.

 

Currently, very expensive SQUIDS are used only by the armed forces of a few countries, mainly in specialized aircraft that detect underwater targets. "The discovery of Chinese scientists increases the availability of this technology and makes it possible to introduce it on a mass scale, e.g. in drone fleets," says the Chinese newspaper "South China Morning Post".

 

Tests have shown that the improved detectors work flawlessly. The device remains stable even in difficult and complicated conditions. Moreover, it demonstrates the ability to identify extremely weak magnetic anomaly signals.

 

With SQUID, the Americans were the first

 

The technology, developed by American scientists in 1964, initially had problems tracking fast-moving submarines. Only innovations introduced by German researchers made it a useful tool.

 

A breakthrough in this field may soon give China a tool to detect advanced American submarines in strategic areas such as the South China Sea." [1]