Przedstawiono uniwersalne stanowisko badawcze do rejestracji i analizy parametrów pracy mechanicznych i pneumatycznych siewników punktowych przy użyciu mikrokomputera.
EN
The work describes a universal research stand for recording and analysis of the work of mechanical and pneumatic single-seed drills with the use of PC microcomputer. This research stand assures a stepless regulation of rotational speed of the sowing element of the drill (range 1÷ 100 rot/min) and values of negative pressure for pneumatic drill (range 0 ÷ 4 kPa). The system of photooptical sensors records points at which seeds leave the drill and the points where they fell in a furrow, as well as the time of a seed flow and then it counts up rotations of the sowing element. Supervision of the sowing process and initial data processing are done by a controller with a microprocessor. The controller additionally provides a two-sided communication with the computer through a series of junction RS 232. Software enables immediate statistical data processing and presentation of the obtained indices and distributions in a form of tables and diagrams.
Wykonano obliczenia podstawowych parametrów pracy siewnika pneumatycznego, przeprowadzono weryfikację możliwości wysiewu punktowego nasion buka na stanowisku pomiarowym.
EN
Knowing geometric and aerodynamic features of sown seeds, work parameters of a pneumatic single-grain drill were calculated. The selection of the proper drill and calculation of its work parameters is also possible. The verification of obtained results was performed with the use of a computer method for testing the drill work quality. The carried out measurements of sowing and elaborated method allowed us to assume that there would be a possibility of using single-grain drills for sowing forest tree seeds.