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Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 42
Partingl, Martin , Blecha, Tomáš
Inertial navigation microsystems for indoor person navigation

This article is focused on comparison and testing of two different microsystems for an inertial navigation intended especially for places without GPS signal. These inertial navigation systems were compared with GPS system. The next research work was focused on dispersion detection from ...

Hornak, Jaroslav , Trnka, Pavel
Konstrukční návrh a realizace diagnostické jednotky pro sledování rozložení prostorového náboje v dielektrických materiálech

This paper deals with the space charge phenomenon and its diagnosis in dielectric materials, especially with the development of diagnostic unit for its measurement. Commonly used method based on electro-acoustic pulse (PEA) principle is described in this paper. Considerable attention is devo...

Krpal, Ondřej , Kučerová, Eva
Měření voltampérových charakteristik pásek a laků používaných jako ochrana před klouzavými výboji u výstupu vinutí čel synchronních generátorů

The paper deals with measurement of coatings used in end-winding of synchronous generators as a protection against sliding discharges. These discharges are due to nonlinear distribution of the electric field along the stator coil. If this protection was not applied, at the machines ...

Dončuk, Jan , Mentlík, Václav , Velek, Jiří , Ullman, Ivo
Úroveň vývoje plynů jako diagnostické hledisko stavu výkonových transformátorů

The article deals with the gas development and detection ways of the gases dissolved in oil generated during the power transformer's operation. The attention is paid mainly to generation of the gases that are characteristic for particular types of failures. The most used diagno...

Motyčka, Martin , Tůmová, Olga
Metody analýzy vhodnosti měřicích systémů

Analysis of the suitability of the measurement systems is one of the key tools used to ensure product quality. These are all methods that examine the quality of the measured data, thus assessing the suitability of use of the measuring system for a particular application. ...

Širůček, Martin , Trnka, Pavel
Detekce tepelné expozice izolačního systému olej-papír s oleji na bázi přírodních esterů

Diagnostics of insulating systems is an important approach to ensure long time and reliable operation of electrical appliances in various fields of electrical engineering. The article deals with degradation and diagnostics of oil-paper insulating systems. The systems are used especially in t...

Kochmannová, Eva
Řízení procesů z hlediska vstupní kvality nesériové výroby

Quality control system has been developed, standardized and improved especially for mass production use and can not be effectively used in a piece production automatically. This article deals with a special methodology for incoming quality control designed for small scale production processes.

Motyčka, Martin
ANOVA – Základní metoda vyhodnocování experimentů

Industrial experiments are a fundamental tool to ensure quality production. It has an essential role especially in the initial development of the product and the subsequent quality improvement. For statistical evaluation is necessary to use a systematic design of the experiment. Basic s...

Voborník, Aleš
Integrační měření s aproximačním převodníkem

This paper solved data integration from aproximation A/D converters. Observation is dedicated to normal mode rejection - NMR.

Voborník, Aleš
Přesnost analogově-digitálního převodníku v STM32 mikropočítačích

This paper analyses some features of an analog to digital converter embedded to STM32F100 microcontrolers. Observation is dedicated to embedded reference voltage, temperature sensor, linearity and noise of converter.

Rendl, Karel , Blecha, Tomáš , Herc, Ladislav , Klocker, Lukáš , Linhart, Richard , Sehnal, Petr , Steiner, František , Wirth, Václav
Multiplexer for automatic testing of multimedia units

Novák, Tomáš , Machač, Jan , Steiner, František
Usage of inert atmosphere for solderability testing

Tureček, Oldřich , Švarný, Jiří , Hrubý, Jan
Ekonomické řešení diagnostiky vibrací kompresoru

Pinkerová, Martina , Polanský, Radek
Nové trendy v materiálech používaných pro izolaci a opláštění kabelů

Thanks to frequent usage of plastics, ordinary materials were almost replaced from cable industry. But the term - plastics is often connected with the risk of fire, especially if these materials are used in proximity of explosive atmosphere or other flammable substances (mainly in&...

Dončuk, Jan , Mráz, Pavel
Možnosti stanovení vlhkosti v pevné izolaci transformátoru

Power transformers play an important role in the electrical networks of each state, and from an economical point of view, they are an expensive investment. To maintain the safe and reliable function of transformers, it is necessary to have actual information. For these reasons ...

Machač, Jan , Steiner, František
Řízení rizik v etapě vývoje technologického procesu

Risk management is an integral part of every state-of-art production enterprise because running enterprises always go with various kinds of risks. Therefore, it is necessary to develop and improve ways of implementation of a risk control system into enterprise processes. Risks are suppo...

Prosr, Pavel , Polanský, Radek
Možnosti využití infračervené spektroskopie s Fourierovou transformací při vstupní kontrole těsnících materiálů

A sealing is defined as an element, which should to prevent water or gases infiltration by gaps created during connections between different compounds. Sealing compound properties is possible to carry out e.g. using dynamical mechanical analysis. From the point of accuracy of the m...

Kochmannová, Eva
Nástroje řízení kvality

Pihera, Josef , Mráz, Petr , Haller, Rainer , Mentlík, Václav
Partial discharges and breakdown voltage diagnostics during thermal aging of insulating materials

Trnka, Pavel , Širůček, Martin , Paslavský, Bohumil
Vliv tvaru nehomogenity v izolačním systému olej-papír na velikost částečných výbojů

Partial discharges measurement is an important method for diagnostics of high voltage machines. The insulating system of power transformers is created by the solid and the liquid part. In these parts is the method used for detection of non-homogenous areas, failures and defects. Th...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 42