process and device to study of the effect of fire control in the aplombs

摘要

The number and distribution of hits by buckshot pellets on a test area are analyzed by moving the test area relative to a sensor that covers a zone smaller than the area and approximates the size of a typical target such as a clay pigeon. The sensor produces a test signal each time it senses a penetration of the test area due to a hit. An oscillator produces timing signals. A counter counts the number of coincidences of timing signals with test signals. A divider compares the total number of timing signals with the number of coincidences for predetermined time periods. Each time period represents a region of the test area covered by the sensor. According to one embodiment, the sensor covers successive annular regions of the test area. According to another embodiment, the sensor travels along parallel lines and then along other parallel lines transverse to the first parallel lines.