| 摘要 |
A gun barrel that consists of a frame tube (1) that encloses a barrel tube (2) that is used to induce rotation to a projectile. The gun barrel as a whole constitutes an electric motor such that the barrel tube (2) is a permanent magnet and acts as the rotor of said motor. The stator coils (3) of said motor are located outside the barrel tube (2) and are used to induce rotation to the rotor, i.e., the barrel tube (2). |
