The invention concerns a device for artillery intended to ram a projectile into the chamber of a weapon barrel, such device comprising an impulse jack incorporating a mobile rod driving a carriage mounted able to slide with respect to a chute, the carriage being able to drive the projectile towards the weapon chamber using drive means. In some embodiments, a plurality of circuit simulators directly receive and process a plurality of sub-region netlists that are based on a spatial partitioning of the IC layout. The folded air lens structure is aligned to direct light from the light source to an object surface. The permanent magnet includes a plurality of north and south poles each having a stronger magnetism section. The imager module includes a modular frame assembly that contains a first portion that holds a plurality of lens barrels, each containing one or more focusing lenses, and a second portion that supports the first portion at a specific distance from the substrate being imaged.