Signal processor for optical fiber sensors based on MEMS Fabry-Perot interferometer

master's thesis

Nikola Uremović (Author), Denis Đonlagić (Mentor), Matej Njegovec (Co-mentor)

Abstract

In the master thesis, we have created an interrogation system for measuring the change of the optical path in the Fabry-Perot interferometer caused by the strain of the surface at which it was attached to. The change of strain can be calculated via a change in optical path length which is visible as a shift in phase angle. The system will be used as a system for measuring strain, although it can be used for measuring various physical parameters that can cause a change in optical path length, such as pressure, force, temperature, etc. Initially, the theoretical background of the system and project components are represented and explained, following the building process of the electronic and optical part of the project. Lastly, the working principle and programming algorithms of a system are presented and explained. Measurement results are shown at the end, as well as the conclusion that is drawn from the thesis.

Keywords

optical fibers;sensors;interferometer;signal processing;

Data

Language:	English
Year of publishing:	2020
Typology:	2.09 - Master's Thesis
Organization:	UM FERI - Faculty of Electrical Engineering and Computer Science
Publisher:	[N. Uremović]
UDC:	535(043.2)
COBISS:	42189315
Views:	401
Downloads:	65
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Nadgradnja upravljanja elektronskih sistemov v osebnem avtomobilu
Secondary abstract:	V magistrski nalogi smo izdelali interogacijski sistem za merjenje spremembe v optičnoj dolžini Fabry-Perotovega interferometra in površine na kateru je pritrjen sensor. Spremembe v dolžini se lahko izračuna iz spremembe v dolžini optične poti in spremembe v fazi. Sistem se bo rabil kot sistem za merjenje raztezka, vendar bi se lahko uporabljal in za merjenje različnih fizikalnih veličin, ki bi lahko povzročale spremembo dolžine optične poti, kot tlak, silo in temperaturo. Najprej je predstavljeno in obrazloženo teoretično ozadje sistema in komponenti v projektu, potem proces izdelave elektronskega vezja in optične proge projekta. Na zadnje je predstavljena programska koda in princip delovanja posameznih čipih. Na koncu so predstavljeni rezultati meritvev, in zaključek celotnega projekta.
Secondary keywords:	optična vlakna;senzorji;interferometer;signalno procesiranje;magistrske naloge;
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za elektrotehniko, računalništvo in informatiko, Elektrotehnika
Pages:	XIV, 99 f.
ID:	11847562