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Št. zadetkov: 5
Miniature iron-carbon eutectic point crucible for the calibration of thermometers
Vincencij Žužek, Jovan Bojkovski
Izvirni znanstveni članek
Oznake: tempertatura;umerjanje;tališče;evtektik železo-ogljik;talilniki;temperature;calibration;melting point;iron-carbon eutectic;crucible;
The article presents the design, construction and evaluation of a miniature graphite iron-carbon eutectic point crucible for the calibration of thermometers. These are either contact such as thermocouples or non-contact such as infrared thermometers. The double wall of the crucible protects its stru ...
Leto: 2021 Vir: Fakulteta za elektrotehniko (UL FE)
Least squares approach to standard platinum resistance thermometer subrange inconsistency reduction with redundant gallium and indium fixed points
Vincencij Žužek, Richard Rusby, Jonathan Pearce, Andrea Peruzzi, Jovan Bojkovski
Izvirni znanstveni članek
Oznake: standardni platinasti uporovni termometer;neskladnost podobmočij;Mednarodna temperaturna lestvica iz leta 1990;metoda najmanjših kvadratov;končna negotovost;standard platinum resistance thermometer;subrange inconsistency;International Temperature Scale of 1990;polynomial least squares;propagation of uncertainty;
The International Temperature Scale of 1990 (ITS-90) defines several different and sometimes overlapping temperature subranges. Where overlap occurs, different definitions of the temperature t$_{90}$ exist that have equal status but produce different results. This discrepancy is called type 1 non-un ...
Leto: 2023 Vir: Fakulteta za elektrotehniko (UL FE)
Development and validation of an argon triple point apparatus with a novel automatic pressure control system
Ivan Matas, Lovorka Grgec Bermanec, Danijel Šestan, Jovan Bojkovski, Vincencij Žužek
Izvirni znanstveni članek
Oznake: trojna točka argona;avtomatska regulacija tlaka;medlaboratorijska primerjava;standardni platinasti uporovni termometer;Mednarodna temperaturna lestvica iz 1990;triple point of argon;automatic pressure control;bilateral comparison;standard platinum resistance thermometer;International Temperature Scale of 1990;
This paper describes the development and validation of an apparatus for the realization of the triple point of argon (83.8058 K), with a novel automatic pressure control system for the liquid nitrogen cryostat. The automatic pressure controller, together with custom-made software, was developed and ...
Leto: 2025 Vir: Fakulteta za elektrotehniko (UL FE)
Dopant-free Fabry-Pérot interferometer temperature sensors based on coreless optical fiber for high-temperature applications
Simon Pevec, Matej Njegovec, Vedran Budinski, René Eisermann, Stephan Krenek, Jovan Bojkovski, Vincencij Žužek, Denis Đonlagić
Izvirni znanstveni članek
Oznake: optical fiber sensor;Fabry-Pérot interferometer;high-temperature sensor;coreless silica fiber;long-term stability;femtosecond laser micromachining;
This study investigates high-temperature Fabry-Pérot interferometric (FPI) sensors fabricated from undoped coreless silica fibers (CLF). Both dopant diffusion and the coefficients of thermal expansion-mismatch-induced stresses are removed effectively by eliminating dopants. The sensors were prepared ...
Leto: 2026 Vir: Fakulteta za elektrotehniko, računalništvo in informatiko (UM FERI)
Realizing the redefined Kelvin
J. V. Pearce, Richard Rusby, R. I. Veltcheva, D. del Campo, C. Garcia-Izquierdo, Andrea Merlone, Graziano Coppa, A. Kowal, L. Eusebio, Jovan Bojkovski, Vincencij Žužek
Objavljeni znanstveni prispevek na konferenci
Oznake: kelvin;Mednarodna temperaturna lestvica iz 1990;standardni platinasti uporovni termometer;neenakost lestvice;nove temperaturne fiksne točke;International Temperature Scale of 1990;standard platinum resistance thermometer;scale non-uniqueness;new temperature fixed-points;
Following the redefinition of the kelvin, the user is presented with a more nuanced traceability route for temperature through the mise en pratique for the definition of the kelvin (MeP-K-19). Here we describe research to address several present and potential shortcomings with the current main disse ...
Leto: 2024 Vir: Fakulteta za elektrotehniko (UL FE)
Št. zadetkov: 5
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