Distribuiran optički senzorski sustavi

master's thesis

• Title (english): Distributed optical sensor systems
• Author: Domagoj Perić
• Mentor: Zvonimir Šipuš (mentor)
• Committee member: Zvonimir Šipuš (predsjednik povjerenstva)
• Committee member: Juraj Bartolić (član povjerenstva)
• Committee member: Marko Bosiljevac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-07-09, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U radu je obrađena tema distribuiranih optičkih senzorskih sustava u vremenskoj domeni (OTDR) temeljenih na Rayleighevom, Ramanovom i Brillouinovom raspršenju. Dan je prikaz teoretske osnove navedenih elektromagnetskih raspršenja te principi rada optičkih reflektometra temeljenih na svakom od triju raspršenja. Obrađena je tema odnosa detektiranog signala i šuma te metode suzbijanja šuma u detektiranom signalu korištenjem raznih metoda usrednjavanja i metodom kodiranog reflektometra u vremenskoj domeni (COTDR). Na kraju, prikazan je postupak eksperimentalnog razvoja distribuiranog Ramanovog temperaturnog senzora. Izveden je Ramanov OTDR kojim je uspješno detektirana promjena temperature duž ispitnog svjetlovoda od 4 km.

Abstract (english)

This thesis addresses optical time-domain reflectometers (OTDR) based upon Rayleigh's, Raman's, and Brillouin's scattering. A theoretical framework of said modes of electromagnetical dispersion is given, as well as corresponding modes of operation of optical reflectometers based upon each of the aforementioned three modes of dispersion. By means of various averaging methods and the use of a precoded optical time-domain reflectometer (COTDR), the relationship between the detected signal and noise (along with possible methods of noise suppression) is discussed. Finally, the experimental development of a Raman distiributed temperature sensor is displayed. Raman OTDR with 4 km measurement system was successfully developed for measuring temperature.

• Keywords: Optički reflektometar u vremenskoj domeni (OTDR); Ramanov optički reflektometar u vremenskoj domeni (ROTDR); Rayleighevo; Ramanovo i Brillouinovo optičko raspršenje; odnos signal-šum
• Keywords (english): Optical time-domain reflectometer (OTDR); Raman optical time-domain reflectometer (ROTDR); Rayleigh's; Raman's; and Brillouin's scattering; signal to nosie ratio
• Language: croatian
• URN:NBN: urn:nbn:hr:168:502337
• Study programme: Title: Information and Communication Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 11:11:41