Projectile and projectile flight parameter measurement apparatus for a weapon

摘要

An ammunition projectile has a plurality of distinctive marks arranged in at least one circular row around the projectile body, with the row of marks extending perpendicular to its longitudinal axis. The marks are illuminated by a strobe flash and successive images are captured by an electronic imager as the projectile exits the barrel of a weapon. A computer, coupled to the imager, processes the electronic signals to determine projectile yaw, spin and muzzle velocity.