Wyniki wyszukiwania - Biblioteka Nauki

1

Steering structure for a single wheeled vehicle

100%

Beno P. , Gutten M. , Simko M. , Kubis M.

|

tom R. 97, nr 1

105--108

EN

Nowadays, there is a need to reduce emissions in the world and use electricity to drive vehicles. There is an increasing interest in small passenger vehicles suitable for crowded cities. In this paper it was designed a universal control structure for a single-wheeled vehicle with a tilt sensor. In this structure is possible to apply a vehicle with parallel wheel arrangement. The paper describes a current and position loop with PI and PD controllers suitable for a single wheeled vehicle. It was designed a simple complementary filter for data processing. A complementary filter evaluate the data from accelerometer and gyroscope, which includes all signal processing requirements for control. Additionally, a program block diagram was also designed to be used in any microprocessor. The results and recommendations of the adjustment for further work with the proposed structure are evaluated in the end of the paper.

PL

W artykule zaprezentowano system sterowania jednokołowym pojazdem elektrycznym stosowanym do poruszania się w zatłoczonym mieście. Do kontroli prądu i pozycji pojazdu zastosowano sterowniki PI i PD. Do kontroli ruchu zastosowano czujniki przyśpieszenia oraz pochyelnia ora żyroskop.

2

Analysis of automotive ignition systems in laboratory conditions

88%

Korenciak D. , Kubis M. , Sebok M. , Gutten M. , Kucera M.

|

tom R. 96, nr 9

48--51

EN

Paper presents basic principles and diagnostic analysis of automotive ignition system for various working and adverse states in laboratory conditions. In the first part of the paper it is examined description and importance of basic diagnostics of automotive ignition system. In the second part of paper they are described on basic principles and solution of spark plug model. In the next part of paper it is focused on proposed test laboratory device for fault simulation. In the finally, specialized measurements were made on the proposed measurement system by simulating faults by applying oil and gasoline between the electrodes and failing to make the ignition contact of the driver on the spark plug.

PL

Artykuł prezentuje laboratoryjną analizę diagnostyczną samochodowego systemu zapłonowego w różnych warunkach pracy. Dokonano przeglądu metod testowania i zaproponowano nowy system diagnostyczny. Przeprowadzono też symulację defektów.

3

Analysis of insulating parameters of oil transformer by time and frequency methods

88%

Gutten M. , Kucera M. , Brncal P. , Sebok M. , Korenciak D.

|

tom Vol. 21, No. 4

51--56

EN

In the paper is presented experimental analysis and diagnostics of insulating system oil-paper for power transformers. In the first part of the paper is described base theory about measurement and diagnostics insulating part (oil and paper) of transformers. In the other two parts of the paper is presented experimental results of the diagnostic measurement for the transformer 22/0.4 kV at constant temperature. Specifically, in the second part is described measuring time method of insulating diagnostics - return voltage measurement (RVM). This method is used for analysis of condition of paper moisture of high-voltage equipment. In the third part is described measuring method of insulating frequency diagnostics - frequency domain spectroscopy (FDS). This method is used for analysis insulating condition of high-voltage equipment with insulating oil-paper. The both measuring methods are unique in terms of analysis of insulating system of oil power transformers. In comparison with other methods, the RVM and FDS methods it is possible comparison and evaluate the moisture state of the dielectric paper of the power transformer with high reliability and accurate. Their reliability in determining moisture in paper was shown by determining the same result (3.5%) on the same measured transformer.

4

Theory of Synthesis of Asymmetrical Delay Line with the Surface Acoustic Wave

63%

Šimko M. , Gutten M. , Chupáč M. , Kučera M. , Glowacz A. , Kantoch E. , Liu H. , Brumercik F.

|

tom Vol. 44, No. 1

117--127

EN

The aim of this publication is to design a procedure for the synthesis of an IDT (interdigital transducer) with diluted electrodes. The paper deals with the surface acoustic waves (SAW) and the theory of synthesis of the asymmetrical delay line with the interdigital transducer with diluted electrodes. The authors developed a theory, design, and implementation of the proposed design. They also measured signals. The authors analysed acoustoelectronic components with SAW: PLF 13, PLR 40, delay line with PAV 44 PLO. The presented applications have a potential practical use.