Light screen for velocity measurements, mobile and robust (IP66), 50 … 3000 m/s / 2521A

The light screen Type 2521A is ideally suited to measure projectile velocity. It works in the infrared spectrum which provides very good measurement accuracy for a wide range of velocities of subsonic and supersonic projectiles. With appropriate filters, the measurement of near sonic projectiles is also easily possible. The light screen is designed to be fully compatible with transient recorder Type 2519A. The analog output signal provides a high quality representation of the physical projectile shape. This allows to choose the appropriate type of velocity measurement (tip-tip, end-end, or any combination), which works best with the used projectile shape. For projectile clouds (e.g. shotgun pellets), the Type 2521 is well suited to calculate the center of gravity of the cloud for velocity measurements.