The recoil direction-indicator design using raster sensor

The recoil movement is a common phenomenon when the gun is firing. In the gun's character testing system. We often encounter the problem that how to trace the direction of the barrel instantaneously. In this paper, We introduced a method to catch the recoil's moving direction in spots. We had designed the system using raster sensor The direction information could be given out in a digital way using one bit data. It also could be displayed using a direction-show LED. The function module was realized according the principle of direction distinguish. The signal's electronic processing circuit was devised using the GAL device and the function was accomplished using VHDL module.