DEVICE FOR DETECTING AND COUNTING SHOT FIRED BY AUTOMATIC OR SEMI-AUTOMATIC FIRE ARM, AND FIRE ARM EQUIPPED WITH THE DEVICE

摘要

PPROBLEM TO BE SOLVED: To provide a device for detecting and counting shots fired by an automatic or semi-automatic fire arm. PSOLUTION: The device adapted to form a typical signature for the fire arm and for the type of ammunition comprises an accelerometer 2 with a pass band which is sensitive to shocks in the axial direction of a barrel and a microprocessor 3 for analyzing a signal S of the accelerometer 2 while firing. The microprocessor 3 is equipped with an algorithm to count the number of shots to be fired, based on the discernment and recording of a shot to be fired on the basis of the detection, in the signal of the accelerometer, of all or part of the characteristic elements of the acceleration signature which is typical in the type of fire arm and of in different types of ammunition to be used. These characteristic elements are recorded beforehand in a memory 4 of the device. PCOPYRIGHT: (C)2008,JPO&INPIT