| 摘要 |
PURPOSE:To prevent the position of a projectile from being erroneously detected due to vibration of a target by detecting a hit signal sent from the foremost sheet out of a plurality of pressurized conductive sheets that are arranged in a predetermined position of the target to detect the position of impact and by providing a logic circuit for checking other time-delay signals form being detected. CONSTITUTION:When a dummy projectile impacts the pressurized conductive sheet 1a of a target A part, an output generated from a flip-flop 4a set by an output produced from an amplifier 2a corresponding to the sheet 1a which has been impacted is displayed on the point of impact by a display circuit 7. A flip-flop 6 is set by the total OR of the respective flip-flops 4a, 4b and 4c via an OR circuit 5, and the gates of AND circuits 3a, 3b and 3c are closed, so that signals to be sent from amplifiers 2b and 2c can be checked. |
