“…This system was capable of detecting the presence and distance of objects within range of 0.3 m to 10.6 m with resolution of ± cm. A steering control system using ultrasonic sensors was designed for an apple harvester so that the harvester would automatically drive over a tree row (McMahon et al, 1983). Five ultrasonic sensors and a timing circuit were used to measure the position of apple tree trunk.…”
“…This system was capable of detecting the presence and distance of objects within range of 0.3 m to 10.6 m with resolution of ± cm. A steering control system using ultrasonic sensors was designed for an apple harvester so that the harvester would automatically drive over a tree row (McMahon et al, 1983). Five ultrasonic sensors and a timing circuit were used to measure the position of apple tree trunk.…”
scite is a Brooklyn-based organization 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 and 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.