Design and implementation of an electronic system to real-time capture and processing speckle interference patterns

A. Barcelata-Pinzon, C. Meneses-Fabian, R. Juarez-Salazar, J. Moreno-Guzmán, M. Durán-Sánchez, R. I. Álvarez-Tamayo, C. Rangel-Romero, M. A. Navarro-Ahuatl

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The design and implementation of an electronic system to real-time capture and processing speckle interference patterns is presented. Because of the random and instability speckle patterns nature, is very useful a system wich allows obtaining and visualizing interference speckle patterns in the shortest time possible. Proposed system captures the first speckle pattern as steady image while captures subsequent patterns from the same source. Images are electronically transformed separately into value arrays and subtracted to obtain real-time interference speckle patterns, these patterns are automatically archived for later analysis. System consist of a CCD camera, a computer interface that makes capturing, a transparent object and a 4f interferometric system whose source is a laser that passes through diffuser glass in order to obtain speckle effect. Experimental results and analytic explanation is showed bellow.

Original languageEnglish
Title of host publicationDimensional Optical Metrology and Inspection for Practical Applications VI
EditorsSong Zhang, Kevin G. Harding
PublisherSPIE
ISBN (Electronic)9781510609419
DOIs
StatePublished - 2017
EventDimensional Optical Metrology and Inspection for Practical Applications VI 2017 - Anaheim, United States
Duration: 13 Apr 2017 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10220
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceDimensional Optical Metrology and Inspection for Practical Applications VI 2017
Country/TerritoryUnited States
CityAnaheim
Period13/04/17 → …

Keywords

  • Interferometric system
  • Real-time process
  • Speckle patterns

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