Dispositivo pneumático para redução dos erros de dosagem e deposição de sementes.

Abstract

A precision pneumatic metering and transport system for seeds was developed. This system can be adapted for continuous flow. It includes a valve for conversion of pressure to vacuum and a pneumatic metering system coupled to a seed transport device to an outlet tube. The system was built to release the seed in at the same speed but in opposite direction to seeder motion. This would allow precise on seed meetering and ground deposition. Seed distribuition was assessed using optical sensors by determining the time between released seeds. The system showed the capability to capture and transport seeds with different characteristics, such as maize, soybeans and wheat.