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In this paper it is designed the automatic system for formation the small pieces from polymer, based on the principle of thermoplastic extrusion. The system has a goal to form pieces with a maximum volume of 20535 mm3. Arduino Mega 2560 and an extension of Ramps 1.4 were used as the control module, and the control of the stepper motors is done by the A4988 drivers. The mathematical model of the thermal...
Elaboration of the analytical algorithms for synthesis of typical controllers P, PD, PI and PID to the objects with arbitrary order of inertia and time delay, using the maximum stability degree criterion is proposed in this paper. The dependencies between dominant roots of the designed system and its dynamical performance were used. There were obtained the analytical expressions for calculation the...
The new approach for determining and imposing the maximum stability degree of the system in function of the control object parameters and the number of tuning parameters of PID controller is proposed in this work. The elaborated method of synthesizing the typical controllers represents a simple analytical procedure, that requires the reduced volume of calculation and not impose the restrictions on...
This paper proposes to control the thermal alloying process of GaAs epilayers growth by transport reaction in Ga-AsCI3-H2 system. The thermal alloying process is controlled by using the universal two-channel programmable PID-controller TRM151, which permits automatic control of complicated objects with high precision. The thermal process was identified using the parametric model ARX (Auto-Regressive...
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