Projectile Speed Test Circuit Diagram

Published:2011/5/20 20:57:00 Author:leo | Keyword: Projectile Speed Test Circuit Diagram, HCT4060, 4096, MOSFET | From:SeekIC

The picture shows a projectile speed test circuit. In the circuit, VT1 and VT2 are phototransistors. Projectile speed begins to be tested when the projectile passes through VT1. When projectile shades VT1, it can be considered as adding 500μV pulse to non-inverting input of A1. The pulse is amplified and reversed through A1 and A4 and offer starting impulse for HCT4060(2)-the 14 bits asynchronous counter. After this, the path of projectile is calculated again from zero and the speed will be calculated by 250ns resolution. At the same time, when projectile reaches VT2, it begins to test HCT4060(1) to test the destination of the projectile.



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