US Navy officials have revealed that a new development in the patented electromagnetic technology will impact future military capabilities.

Researchers at the US Naval Surface Warfare Center Dahlgren Division (NSWCDD) filed the superconducting stator patent in May.

NSWCDD physicist Albert Corda said: "Most conventional magnetic flux compression generators are explosively driven, dangerous to handle and limited to one-time use.

"The idea originated from a side-bar discussion that centred on the utility of high temperature superconducting materials."

"The novel architecture of the generator described in this patent, however, is not explosive in nature. It’s inherently safer to handle and potentially reusable."

The patent is jointly filed by scientists from NSWCDD in Virginia and NSWC Carderock Division in Maryland, US.

Designed to produce a high-voltage pulse output that can be integrated into an EMP generator, the magnetic flux compression generator can produce a short duration, highly localised electromagnetic pulse managed by a superconducting stator, which allows multiple activations of the flux compression generator.

EMP is a broadband signal with a frequency-power distribution ranging from a few hundred kHz to a few gHz.

NSWC Carderock scientist Dr Jack Price said: "The idea originated from a side-bar discussion that centred on the utility of high temperature superconducting materials.

"These materials, composed of particular copper oxides called cuprates and typically layered on top of a nickel substrate, have very low resistance at liquid nitrogen temperatures.

"The proposed superconducting stator is potentially practical and affordable, given the commercial availability of high temperature superconductor materials that operate at liquid-nitrogen temperature."

With the military and industrial applications depending on the output configuration, the applications can range from the generation of broadband radio frequency transmissions to the rapid acceleration of physical mechanisms to high velocities.

NSWCDD EMP assessment group member Blaise Corbett said: "Each of the warfare centre divisions has particular mission areas of expertise.

"Dahlgren has a long history and expertise in pulsed power systems and applications. Carderock has expertise in high temperature superconducting (HTS) materials and applications evidenced by their development of a HTS degaussing system and motor."

Defence Technology