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Ovrednotenje temperaturne odvisnosti sistema za merjenje mase vozil
ŽITNIK, IGOR (Author), Beguš, Samo (Mentor) More about this mentor... This link opens in a new window

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Abstract
V elektrotehniki ne obstaja električni element, ki bi bil sam po sebi popolnoma temperaturno neodvisen. To je fizikalna lastnost elektronov, ki se (pri večini) z višjo temperaturo gibljejo hitreje kot z nižjo. S tem se poveča možnost trkov med njimi, kar pri višjih temperaturah posledično poveča električno upornost elementa. V tem diplomskem delu, sem se posvetil ugotoviti, kolikšna je temperaturna odvisnost SiWIM® merilnega sistema, ki je namenjen tehtanju vozil med vožnjo. Za izvedbo te naloge je bilo potrebno proizvesti testno napravo (in jo ovrednotiti z merilno negotovostjo), s katero bomo reproducirali vhodne signale v merilno enoto, ki bi jih drugače tvorila vozila. V naslednjem koraku pa v temperaturni komori izvesti še temperaturni test, ter na podlagi testa ovrednotiti temperaturno odvisnost sistema.

Language:Slovenian
Keywords:merilna negotovost, temperaturna odvisnost, tehtanje vozil med vožnjo
Work type:Undergraduate thesis (m5)
Organization:FE - Faculty of Electrical Engineering
Year:2016
Views:813
Downloads:768
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Secondary language

Language:English
Title:Temperature Dependence Evaluation of the Weigh In Motion System
Abstract:
In electrical world, an element that would be completely temperature independent, does not exist. This is a physical property of electrons, which moves faster at higher temperatures then in lower. This results in more collisions between them, which in the end increases electrical resistance of the element. In this thesis I devoted my attention to found out the range of the temperature dependence of SiWIM® measuring system, which is meant for weighing vehicles when traveling at normal speed. For realisation of this task, a testing device had to me made (and evaluated with measuring uncertainty), which will reproduce input signals to the measuring unit, as the vehicles would cause. In the next step also a test in temperature chamber had to be made and in the end give an information of temperature dependence of the system.

Keywords:measuring uncertainty, temperature dependence, weigh in motion

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