Mjerna nesigurnost tipa B u geotehničkom laboratoriju

master's thesis

• Title (english): Type B measurement uncertainty in the geotechnical laboratory
• Author: Lucija Mateša
• Mentor: Mario Gazdek (mentor)
• Committee member: Sanja Kovač (predsjednik povjerenstva)
• Committee member: Mario Gazdek (član povjerenstva)
• Committee member: Boris Kavur (član povjerenstva)
• Committee member: Jasmin Jug (član povjerenstva)
• Granter: University of Zagreb; Faculty of Geotechnical Engineering; Varaždin
• Defense date and country: 2024-07-19, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

U ovome radu opisuje se postupak izračuna mjerne nesigurnosti za ispitivanja u
geotehničkom laboratoriju s ciljem poboljšanja kvalitete i pouzdanosti dobivenih
rezultata.
Za procjenu mjerne nesigurnosti odabrana je GUM metoda (engl. Guide to the
expression of uncertainty in measurement), koja omogućuje izračun mjerne
nesigurnosti prema tipu A i tipu B. Određivanje mjerne nesigurnosti tipa A temelji se
na statisti kim metodama iz niza opažanja, dok tip B koristi apriorne distribucije koje
se određuju iz iskustva. Prikazani su primjeri izra una mjerne nesigurnosti prema
tipu B i kombinacijom tipa A i B pomo u ispitivanja vla~nosti tla. Za tip B provedena
je analiza i utjecaj dominantnih faktora nesigurnosti na konačan rezultat mjerne
nesigurnosti. Zbog specifičnosti tla kao ispitnog materijala, tip B pokazao se kao
bolja opcija izračuna mjerne nesigurnosti u geotehničkom laboratoriju.

Abstract (english)

This paper describes the procedure for calculating measurement uncertainty for
tests in a geotechnical laboratory with the aim of improving the quality and reliability
of the obtained results.
The GUM method (Guide to the expression of uncertainty in measurement) was
chosen for the assessment of measurement uncertainty, which enables the
calculation of measurement uncertainty according to type A and type B. The
determination of measurement uncertainty of type A is based on statistical methods
from a series of observations, while type B uses a priori distributions that are
determined from experience. Examples of measurement uncertainty calculation
according to type B and a combination of type A and B using soil moisture testing
are presented. For type B, the analysis and influence of dominant uncertainty factors
on the result of measurement uncertainty was carried out. Due to the specificity of
soil as a test material, type B proved to be a better option for calculating
measurement uncertainty in a geotechnical laboratory.

• Keywords: mjerna nesigurnost; GUM metoda; tip A; tip B; geotehni ki laboratorij
• Keywords (english): measurement uncertainty; GUM method; type A; type B; geotechnical laboratory
• Language: croatian
• URN:NBN: urn:nbn:hr:130:227451
• Study programme: Title: Geoenvironmental Engineering; specializations in: Geoenvironmental Engineering, Environmental Management, Water Management; Course: Geoenvironmental Engineering; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka inženjerstva okoliša (sveučilišni/a magistar/magistra inženjer/inženjerka inženjerstva okoliša)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2024-09-04 08:39:29