Bilateralna usporedba mjerenja apsolutnog tlaka u području od 800 do 1100 hPa

Zanchi, Vedran (2017) Bilateralna usporedba mjerenja apsolutnog tlaka u području od 800 do 1100 hPa. = Bilateral comparison of measurements in the absolute pressure range from 800 up to 1100 hPa. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Grgec Bermanec, Lovorka.

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Abstract (Croatian)

U okviru ovog rada, dan je pregled osnovne metodologije mjerenja tlaka, s naglaskom na mjerenje tlaka okoline (barometarskog tlaka) i koncept određivanja mjerne nesigurnosti. Osim toga, prikazana su pravila umjeravanja mjernih instrumenata te pregled normi i uputa za provedbu međulaboratorijskih usporedbi i obradu rezultata. Nadalje, rad opisuje provedbu bilateralne usporedbe umjeravanja apsolutnog tlaka u području od 800 do 1100 hPa. Cilj usporedbe je ocijeniti učinkovitost umjeravanja laboratorija primjenom proračuna mjerne nesigurnosti i En vrijednosti. Laboratoriji koji sudjeluju u usporedbi su Laboratorij za procesna mjerenja Fakulteta strojarstva i brodogradnje, te umjerni laboratorij Državnog hidrometeorološkog zavoda. Objekt umjeravanja je bio digitalni barometar PTB330, Vaisala. Prikaz rezultata je dan tablično i grafički te komentiran.

Abstract

In this diploma work, an overview of pressure measurement methodology is given, with an emphasis on ambient (barometric) pressure measurement and the concept of measurement uncertainty determination. In addition, the calibration guidelines for measuring instruments are presented, as well as an overview of norms and guidelines for the implementation of interlaboratory comparisons and processing of results. Furthermore, the paper describes the protocol of a bilateral comparison of calibration of the absolute pressure in the range of 800 to 1100 hPa. The purpose of the comparison was to evaluate the efficiency of laboratory calibration by calculating specific measurement uncertainties and corresponding En scores. The participant laboratories in the bilateral comparison are The laboratory for process measurement (LPM) at Faculty of mechanical engineering and naval architecture and the calibration laboratory of the Meteorological and Hydrological Service. The object of calibration was a digital barometer PTB330, Vaisala. The results are presented via tables and diagrams and commented on.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: atmosferski tlak;barometar;mjerenje;umjeravanje;mjerna nesigurnost;međulaboratorijska usporedba;En vrijednost
Keywords (Croatian): atmospheric pressure;barometer;measurement;calibration; measurement uncertainty;interlaboratory comparison;En score
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 300 Department of Thermodynamics, Thermal and Process Engineering > 320 Chair of Thermal and Process Engineering
Date Deposited: 13 Jul 2017 11:34
Last Modified: 26 Jul 2017 12:34
URI: http://repozitorij.fsb.hr/id/eprint/7846

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