Title :
FPGA Implementation of a 16-Channel Lock-In Laser Light Scattering System
Author :
Moreno-Báez, Arturo ; Léon, Gerardo Miramontes-de ; Sifuentes-Gallardo, Claudia ; García-Domínguez, Ernesto ; Alaniz-Lumbreras, Daniel ; Huerta-Ruelas, Jorge A.
Author_Institution :
Lab. de PDS, Univ. Autonoma de Zacatecas, Zacatecas, Mexico
fDate :
Sept. 28 2010-Oct. 1 2010
Abstract :
The use of optical techniques for the measurement and characterization of physical phenomena is of great interest in the scientific and industrial communities. This work shows the implementation of an integrated system for measuring Multi-angle Laser Light Scattering on a Field Programmable Gate Array. The embedded design delivers a compact and highly competitive system. The system is able to display, in real-time, the light intensity from a photo detector array showing in this way the corresponding pattern distribution of the scattered light at 16 sensing points. Some laser light scattering patterns from metallic samples with different roughness are shown.
Keywords :
field programmable gate arrays; integrated circuit testing; light scattering; measurement by laser beam; photodetectors; 16-channel lock-in laser light scattering system; FPGA; embedded design; field programmable gate array; light intensity; optical techniques; photodetector array; Arrays; Detectors; Driver circuits; Light scattering; Optical scattering; Semiconductor lasers; FPGA; light scattering; lock-in amplifier; surface roughness;
Conference_Titel :
Electronics, Robotics and Automotive Mechanics Conference (CERMA), 2010
Conference_Location :
Morelos
Print_ISBN :
978-1-4244-8149-1
DOI :
10.1109/CERMA.2010.83
