Abstract
. A promising direction for the development of precision seeding drills is their electrification with the development of a control system for the rotation of the disc of the seeding apparatus, as well as the improvement of the seeding control system with the subsequent development of an algorithm for automatic control and regulation of the position of the puller doubles. The interaction of seeds with a capacitive seeding sensor is necessary to study and determine the duration of the flight of one seed through its sensitive elements to ensure high-quality and reliable operation of the automatic control system for the position of the doubles puller. The research was carried out with seeds of various crops: soy (variety “Lisbon”), corn (variety “Falcon”), lupin (variety “Delta”), sugar beet for experiments (fraction: 3.50–4.75). The values of the time of flight of seeds through the sensitive elements of the seeding sensor were determined with an accuracy of one millisecond in the course of laboratory studies and displayed on the display in the form of a graph, stored in the computer's memory and then processed by methods of mathematical statistics. Data on the time of flight of seeds through the capacitive sensor, which are for: soybean - from 11 to 13 ms, lupine - from 11 to 14 ms, sugar beet - from 7 to 9 ms, corn - from 12 to 14 ms were obtained from the results of research. They practically do not change in the operating speed range of the sowing unit (sowing disc rotation frequency 20 - 60 rpm), and can be taken as the time of flight of one seed in further calculations.The obtained data will allow to determine more detailed information about the operation of the sowing unit (skips, twins, damaged seeds), which will significantly increase the functionality of the seeding control systems used.
Published Version
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