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
scite is a Brooklyn-based startup that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.