Abstract: In order to meet the demand of measuring the projectile-curtain parameter of multibarrel volleyed weapons, a method basing on the divided six-light-screen array was put forward. When projectiles from multibarrel volleyed weapons past through the divided screens, each small screen sensor would put out signals. The multi-channels data acquisition device captured these signals and then calculated the times of between different signals. The time sequence for a projectile past through six screens can be identified according to the principle that the flying time between the symmetry screens was the same and the flying time in different position in one screen was different. Finally the flying parameters for every projectile can be worked out. The efficiency of the algorithm has been verified by emulation tests. Besides, the implementation scheme for the light screen was given, and has been verified by the high rate firing tests.