Patent ID: 8305071

Claim:
An apparatus measuring muzzle velocity (V 0 ) of a projectile, comprising: a smooth weapon barrel or firing barrel as a waveguide, a signal generator electrically connected to a transmission coupler by a signal supply line for energizing the weapon barrel or firing barrel; and an evaluation device connected to at least one receiving coupler by a receiving line so that signals measured by the receiving coupler are passed to the evaluation device, wherein a distance between the transmission coupler and the at least one receiving coupler is variable and is selectable individually based on a first or a second mode selection of the waveguide, in the first mode the receiving coupler is arranged between a projectile base and the transmission coupler when a measurement is being carried out after the projectile has passed through, and in the second mode the receiving coupler is arranged between a projectile nose and the transmission coupler when the velocity (V 0 ) is measured before the projectile passes through.