Thesis-1996-DavilaAlvarez.pdf (3.73 MB)
0/0

Transient displacement analysis using double-pulsed ESPI and fringe processing methods

Download (3.73 MB)
thesis
posted on 02.05.2018 by Abundio Davila Alvarez
This thesis deals with techniques for the displacement measurement of fast transient phenomena using ESPI. Four main contributions are presented. First, a computer model for speckle noise and ESPI fringe generation is proposed. An assessment methodology for speckle noise reduction algorithms is then derived using the computer model. Then the noise in the ESPI fringe patterns is analysed using computer generated speckle and several solutions for its reduction are proposed and assessed. Finally, a fast electro-optical system is presented as a solution to the unambiguous phase extraction problem from a single interferogram. With this novel system, whole field transient displacements occurring in time intervals as short as 20ns can be successfully registered and retrieved. [Continues.]

Funding

Mexico, Consejo Nacional de Ciencia y Tecnología, Centro de Investigaciones en Optica.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Publisher

© A. Dávila

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

1996

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.

Language

en

Exports

Logo branding

Keyword(s)

Exports