PAI offers two laser systems for detecting projectiles for velocity measurement and triggering purposes.

The first is a standard laser (HeNe or diode) that is projected across the gun’s trajectory into a photodectector. A pair of laser/detector stations with their control/display unit will provide a time interval between the two stations and a fast rise, short duration output pulse synchronized with the projectile detection at each station.  The main advantage of this type of system is low cost.

The second type projects a band of diode laser light (50mm high by 1mm wide) across the gun’s trajectory into a multiple-element array of 1.5mm x 1.5mm photodetectors.  A pair of laser/detector stations with their control/display unit will provide a time interval between the two stations and a fast rise, short duration output pulse synchronized with the projectile detection at each station. The main advantage of this system is that the projectile must only block the light to one of the multiple detectors to produce an output signal.  This means that the system can detect a very small projectile (2mm) with great reliability or a larger projectile that is off nominal trajectory as much as 23mm plus half the projectile diameter above or below the center of the laser beam. Either of these capabilities is useful when the velocity measurement location is far from the gun’s muzzle.

Contact us for additional information on this and other avaible instrumentation