Wyniki wyszukiwania - BazTech

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An Original System for Controlling the Speed of Movement of Pneumatic Drives in Rehabilitation Devices

Żyłka Marta, Żyłka Wojciech, Szczerba Zygmunt, Biskup Marcin

Advances in Science and Technology. Research Journal

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2023

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Vol. 17, no. 1

124--132

EN

The aim of the article is to present an original method of speed control and simultaneous stroke of the piston rods of two pneumatic cylinders using potentiometric position transducers, pneumatic solenoid valves, properly scaled throttle-check valves, solenoid valves and a microcontroller with power modules for solenoid valves. Initial experimental studies of the control system for simultaneous displacement of two piston rods of pneumatic actuators were carried out. The purpose of the research was to obtain the characteristics of the displacement of the extension of two pneumatic drives. The obtained results were analyzed. The results of the measurements confirmed the possibility of applying the presented control to rehabilitation devices for passive exercises of the lower extremities. The advantage of the proposed control system is its reaction speed, which is a response to changes in operating conditions of a given actuator, such as: external disturbances, own resistance of the controlled device, frictional resistance or movement caused by the patient exercising on the rehabilitation device moved by these actuators.

2

Experimental Research on the Velocity of Two Pneumatic Drives with an Element for Concurrent Motion

Żyłka Marta, Szczerba Zygmunt, Szczerba Kamil

Advances in Science and Technology. Research Journal

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2022

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Vol. 16, no. 2

81--88

EN

Experimental studies of a pneumatic drive system were carried out with the ap-plied element for the concurrent movement of two pneumatic drives. The main aim of these experiments was to obtain the results of specific measurements of displacements of two piston rods of pneumatic drives in relation to different values of loads in the whole range of the travel length. On the basis of these results, the speed of piston rods of two drives was determined. The results achieved during the experiment, showed the possibility of simultaneous insertion of two pneumatic drives with the use of an ele-ment for concurrent motion. This article is a continuation of the first article which was the study of the stroke speed of pneumatic cylinders with a synchronizing element.

3

Research on a rodless pneumatic actuator with magnetic transfer

Szczerba Zygmunt, Szczerba Kamil, Żyłka Marta, Żyłka Wojciech

Science, Technology and Innovation

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2020

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Vol. 10, no. 3

23--29

EN

The article presents the results of experimental and numerical tests of a rodless actuator with magnetic transfer. The study concerns the dynamic operation of the actuator. A series of measurements of pressure variability as a function of the distance and speed of the actuator’s operation on a real stand were performed. The study was repeated by modeling the system in the FluidSim environment. The obtained variation waveforms were compared with the real ones in order to determine the suitability of this type of tool for testing actuators.

PL

W artykule przedstawiono wyniki badań eksperymentalnych i numerycznych siłownika beztłoczyskowego z przeniesieniem magnetycznym. Badanie dotyczy pracy dynamicznej siłownika. Wykonano szereg pomiarów zmienności ciśnień w funkii drogi i prędkości działania siłownika na stanowisku rzeczywistym. Powtórzono badanie modelując układ w środowisku FluidSim. Uzyskane przebiegi zmienności porównano z rzeczywistymi, w celu określenia przydatności tego typu narzędzia do badań siłowników.

4

Vision system supporting the pilot in variable light conditions

Szczerba Piotr, Rzucidło Paweł, Szczerba Zygmunt, Drupka Grzegorz

Eksploatacja i Niezawodność

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2019

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Vol. 21, no. 1

60--67

EN

The aim of this study is to demonstrate the applicability of contemporary optoelectronic systems supported by image processing algorithms in aviation. Optoelectronic systems can support the pilot’s work or the work of an Unmanned Aerial Vehicle (UAV) operator after being installed in the cockpit of the pilot or in a ground station. The origin of the problem is related to the aspects of safe operation of the aircraft in the conditions of dynamically changing ambient light observed by the aircraft pilot or operator monitoring the monitor at the ground station and observing the image from the camera installed on the UAV. The proposed solution is to help avoid situations in which the pilot’s/operator’s situational awareness deteriorates due to strong optical phenomena.

PL

Celem niniejszego opracowania jest zademonstrowanie możliwości zastosowania współczesnych układów optoelektronicznych wspomaganych przez algorytmy przetwarzania obrazu w lotnictwie. Układy optoelektroniczne mogą wspomóc pracę pilota lub pracę operatora bezzałogowego statku powietrznego (BSP) po zainstalowaniu w kabinie pilota bądź w stacji naziemnej. Geneza problemu jest związania z aspektami bezpiecznej eksploatacji statku powietrznego w warunkach dynamicznie zmieniającego się oświetlenia otoczenia obserwowanego przez pilota samolotu lub operatora śledzącego monitor w stacji naziemnej i obserwującego obraz z kamery zainstalowanej na BSP. Zaproponowane rozwiązanie ma pomóc uniknąć sytuacji, w których świadomość sytuacyjna pilota/operatora pogarsza się na skutek silnych zjawisk optycznych.