PROJECTILE_GLOW_DETECTOR

Published:2009/7/20 12:05:00 Author:Jessie | From:SeekIC

2N469A phototransistor detects brief low-intensity self-luminous shroud of projectile, and feeds high-gain pulse amplifier that elevates voltage enough to ionize thyratron that initiates discharge of spark-source capacitor for shadowgraph photography.-O. H. Bock and P. L. Clemens, Aerodynamic Measurements in a Hypervelocity Gun Range, Electronics, 34:44, p 33-37.



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