Optični digitalni merilnik tresljajev

diplomsko delo

Luka Maček (Author), Robert Rozman (Mentor)

Abstract

V diplomskem delu opišemo izdelavo enostavnega sistema za merjenje tresljajev v cenovnem razredu do 50 evrov. Z odbojem laserskega žarka od premičnega zrcala (optični del) in zaznavanjem položaja njegove projekcije na linearnem optičnem tipalu CCD (digitalni del), s sistemom merimo tresljaje s frekvencami do 100 Hz. Kakovost meritev smo ocenili eksperimentalno s pomočjo umetno ustvarjenih tresljajev in z dolgotrajnejšo postavitvijo v realno okolje zgradbe z velikim številom mimoidočih pešcev. Ugotovili smo, da je tovrstna rešitev v trenutnem stanju uporabna za zaznavanje seizmološke aktivnosti. Za oceno uporabnosti sistema za izvajanje natančnejših meritev, potrebnih za napovedovanje potresnih sunkov, pa bi ga bilo potrebno še podrobneje raziskati. Analizirali smo tudi uporabnost sistema za zaznavanje prisotnosti v prostorih zgradbe in ugotovili, da lahko uspešno zaznavamo korake oseb v istem prostoru.

Keywords

merjenje tresljajev;seizmograf;laser;tresljaj;CCD;visokošolski strokovni študij;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FRI - Faculty of Computer and Information Science
Publisher:	[L. Maček]
UDC:	004(043.2)
COBISS:	167064579
Views:	547
Downloads:	15
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Optical Digital Vibration Measurement Device
Secondary abstract:	This thesis describes the development of a simple vibration measurement system in the price range of less than 50 euros. By reflecting a laser beam from a moving mirror (optical part) and detecting the position of its projection using a linear optical CCD sensor (digital part), we can measure vibrations with frequencies up to 100 Hz. The quality of the measurements was evaluated experimentally with artificially generated vibrations and by a longer-term setup in a real environment of a building with a large number of passing pedestrians. We found that the solution in its current form is suitable for recording seismic activity. However, further research is needed to evaluate the applicability of the system for more accurate measurements needed for earthquake prediction. We have also analyzed the applicability of the system for use in presence detection and found that it can successfully detect footsteps originating from the same room.
Secondary keywords:	vibration measurement;seismograph;laser;vibration;CCD;computer science;diploma;Računalništvo;Univerzitetna in visokošolska dela;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000470
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za računalništvo in informatiko
Pages:	57 str.
ID:	19929338