Implementation of a Lock In Amplifier for Optical Spectroscopy Measurements

  • R. Homs Departamento de Física, Facultad de Eléctrica, Instituto Superior Politécnico José Antonio Echeverría
  • E. Purón Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana

Abstract

The experimental set-up of an optical spectroscopy measurement based on virtual instrumentation is presented. A lock-in amplifier has been implemented by applying digital signal processing techniques to a PC-based data acquisition board. The application was developed in C++, on top of open source Qt/Qwt graphical framework. The spectral emission of reference light sources were measured in order to calibrate and validate the system.

Published
Jul 15, 2014
How to Cite
HOMS, R.; PURÓN, E.. Implementation of a Lock In Amplifier for Optical Spectroscopy Measurements. Revista Cubana de Física, [S.l.], v. 31, n. 1, p. 23-25, july 2014. ISSN 2224-7939. Available at: <https://revistacubanadefisica.org/index.php/rcf/article/view/RCF_31-01_23_2014>. Date accessed: 13 aug. 2022.
Section
Original Articles

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