Umjeravanje mjerila relativne vlažnosti

undergraduate thesis

• Title (english): Calibration of Relative Humidity Meters
• Author: Josip Krtolačić
• Mentor: Danijel Šestan (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2021-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

U ovom radu opisuje se i pokušava se standardizirati postupak umjeravanja mjerila relativne vlažnosti. Objašnjene su termodinamičke osnove idealnog plina, realnog plina i vlažnog zraka. Prikazan je princip rada i način korištenja generatora vlage i usporednih etalona. Opisane su metode umjeravanja, kako smanjiti nesigurnosti te kako pravilno rukovati mjernim uređajem i zaštititi ga od oštećenja. Navedeno je što treba sadržavati i kako treba izgledati certifikat o umjeravanju i kako proračunati mjerne nesigurnosti. Na kraju rada opisan je postupak umjeravanja jednog uređaja za potrebe industrije na čijem se primjeru pokazala primjena teorijski obrađenih osnova iz prve polovice rada.

Abstract (english)

This paper describes and attempts to standardize the procedure for calibrating relative humidity meters. The thermodynamic bases of ideal gas, real gas, and humid air are explained. The principle of operation and the method of using a moisture generator and standards are presented. Calibration methods are described, how to reduce uncertainties and how to properly handle the measuring device and protect it from damage. It states what should be contained and what the calibration certificate should look like and how to calculate the measurement uncertainties. At the end of the paper, the procedure of calibration of one device that is used in industry is described, on the example of which the application of theoretically processed bases from the first half of the paper was shown.

• Keywords: mjerenje vlažnosti; vlažni zrak; umjeravanje; mjerna nesigurnost; etalon
• Keywords (english): humidity measurement; humid air; calibration; measurement uncertainty; standard
• Language: croatian
• URN:NBN: urn:nbn:hr:235:662176
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-02-17 19:21:20