Departure firing several calculation systems and departure firing several calculation manners

摘要

PROBLEM TO BE SOLVED: To reduce costs of firearm, and to accurately count the number of fired bullets.;SOLUTION: The fired bullet counting system has a firearm, a support member supporting the firearm, a motor for rotating the firearm with respect to the support member, a rotation angle detecting part for detecting a rotation angle in the motor, and a control part 31 counting the number of fired bullets on the basis of an error signal between a command value of the rotation angle and a detected rotation angle. Sine the number of fired bullets is counted on the basis of the error signal between the command value of the rotation angle of the motor and a detected rotation angle, it is not necessary to dispose a sensor exclusive for counting the number of bullets. Since the rotation angle detecting part generates sensor output following rotation of a rotor of the motor, causing of erroneous detection, undetection, or the like of the number of fired bullets can be prevented.;COPYRIGHT: (C)2010,JPO&INPIT