Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSakah, Mahmud Ali-
dc.description.abstractThe present thesis describes the design, construction and testing of a new velocity measurement optical technique system. The technique has similarities with the laser Doppler velocimetry (LDV) in that it uses scattered light detection, in order to measure one component of the velocity vector of moving flows or solid surfaces. It uses the fringes of a Bessel beam produced by an axicon to generate the measurement volume. This technique, which we call Laser Bessel velocimetry (LBV), is noninvasive and permits continuous velocity measurements of moving particles. The experimental measurement set-up including the laser source, the optical devices, a moving stage with known velocities, a photodetector to capture scattered light and signal processing and data acquisition components, was developed and used to provide a proof of concept of this new technique. The set-up was also tested with a commercial LDV system. Two types of refractive linear axicons have been used to generate a Bessel type beam by illuminating the axicons with blue and red collimated and coherent laser light of dissimilar wavelengths, λ. The linear axicons offer the advantage of simplicity. The software tools for measurements, acquisition and analysis of the data are developed using NI Labview and MATLAB. Results from both theoretical simulation and experimental measurements are presented and compared.en_CA
dc.subjectvelocity measurement optical technique systemen_CA
dc.subjectscattered light detectionen_CA
dc.subjectBessel beamen_CA
dc.subjectLaser Bessel velocimetry (LBV)en_CA
dc.subjectLDV systemen_CA
dc.subjectrefractive linear axiconsen_CA
dc.titleDevelopment of a new velocity measurement technique : the laser bessel velocimetryen_CA
dc.description.degreeMaster of Science (MASc) in Engineeringen_CA
dc.publisher.grantorLaurentian University of Sudburyen_CA
Appears in Collections:Master's Theses
Master's Theses

Files in This Item:
File Description SizeFormat 
CompleteThesisAfterDefence_2.pdf3.48 MBAdobe PDFThumbnail

Items in LU|ZONE|UL are protected by copyright, with all rights reserved, unless otherwise indicated.