A new air-based electromagnetic detection system developed by China could lead to significant changes in submarine detection methods in the future. The remarkable point is that this technology is neither a warship nor an advanced missile. The system consists of giant electromagnetic coils suspended from a helicopter.
The system called “ATEM” was developed to map objects, geological structures and underwater formations under the surface. In recent tests carried out by Chinese researchers, the system consisting of three large coils, each approximately 25 meters in diameter, was successfully kept in the air.
One of the coils serves as a transmitter, one as a receiver, and the other as a balancing unit. The entire structure is suspended under a helicopter via special cables.
MAIN PURPOSE: CIVIL USE
According to the researchers, the primary areas of use of the system will be mineral exploration, detection of underground water resources and geological investigations. However, it is stated that electromagnetic scanning technology can also be evaluated in the military field.
In particular, some studies conducted in the past have revealed that such systems may have the potential to detect submarines under water. In a simulation study conducted in 2012, a miniaturized submarine model was successfully detected in a saltwater environment.
THE BIGGEST PROBLEM IS TO MAINTAIN BALANCE IN THE AIR
The biggest technical hurdle for the ATEM system was ensuring that the giant coils remained stable during flight. Wind, turbulence created by helicopter rotors and sudden maneuvers can cause the system to oscillate and tilt, reducing the accuracy of measurements.
Researchers note that even moderate acceleration can cause the coils to bend by more than 20 degrees. Therefore, most of the work focused on improving the stability of the system in air.
HOW DID THE CHINESE TEAM FIND THE SOLUTION?
The team, including researchers from Beihang University and the Chinese Academy of Sciences, developed a special computer model that optimizes cable lengths and tension values. In this way, the bobbins were transported in a more balanced manner.
In addition, a flexible aerodynamic film was placed behind the main coil. This structure, which acts as a passive stabilizer, helps the system remain more stable by reducing oscillations. It was reported that the coils were able to maintain their largely flat positions during the seven-minute test flight.
IT’S STILL EARLY FOR SUBMARINE HUNTING
Although the technology has produced remarkable results, experts do not think that the system is ready for direct submarine hunting. The data obtained so far is based mainly on simulations and controlled tests.
It is also stated that the system shows its best performance at low speeds and during smooth maneuvers. Oscillations may increase again in fast turns and sudden movements.
China’s ATEM system, consisting of three giant coils, is considered a significant engineering achievement, especially in the field of airborne electromagnetic scanning.
All copyrights of the articles, news and photographs published on the website www.sozcu.com.tr belong to Mega Ajans and Rek. Tic. It belongs to A.Ş. It cannot be quoted without permission, even by citing the source.
