2009 International Conference on Information Technology and Computer Science 2009
DOI: 10.1109/itcs.2009.232
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Abstract: Velocity measurement for projectile usually used more than two optical targets. A novel measurement method by using three light screens target which was made up of one light source, one optical detector and two reflectors was proposed in this paper. The parallel beams of light source were reflected twice to optical detector, which formed three light screens. The light source was discussed, the measurement principle was analyzed. The typical signal output in four cases was discussed and a single channel chronom… Show more

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