Title :
Real-time displacements measurement using FPGA and interferometry
Author :
Velásquez-Aguilar, J.G. ; Mayorga-Cruz, D. ; Zamudio-Lara, A. ; Arias-Estrada, M.O.
Author_Institution :
Centro de Investigacion en Ingenieria y Ciencias Aplicadas, Univ. Autonoma del Estado de Morelos
Abstract :
In this work, implementation of a system-on-chip in a field programmable gate array (FPGA) is described. This system analyzes temporal phase-shift in a pattern of interference fringes, in order to measure displacements in real-time. The interferograms images are introduced to the FPGA through a charge coupled device (CCD). A pipeline architecture is used to the stages of phase analysis and display of the results. The system consumes just 2030 slices of an XC2V3000 and it runs at 65 MHz clock frequency.
Keywords :
CCD image sensors; Michelson interferometers; displacement measurement; field programmable gate arrays; light interferometry; system-on-chip; 65 MHz; CCD; FPGA; Michelson interferometer; XC2V3000; charge coupled device; field programmable gate array; interference fringe pattern; interferometry; phase analysis; pipeline architecture; real-time displacements measurement; system-on-chip; temporal phase-shift analysis; Charge coupled devices; Charge-coupled image sensors; Displacement measurement; Field programmable gate arrays; Interference; Pattern analysis; Phase measurement; Phase shifting interferometry; Real time systems; System-on-a-chip;
Conference_Titel :
Electronics and Photonics, 2006. MEP 2006. Multiconference on
Conference_Location :
Guanajuato
Print_ISBN :
1-4244-0627-7
Electronic_ISBN :
1-4244-0628-5
DOI :
10.1109/MEP.2006.335678
