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Superficies y vacío
versión impresa ISSN 1665-3521
Superf. vacío vol.23 no.2 Ciudad de México jun. 2010
Digital phaseanalyzer for low frequency applications based on reconfigurable hardware
G. MaciasBobadilla1, I. Serroukh1, L. A. FrancoGasca1, M. LópezRomero2 and F. JiménezTapia2
1 División de Estudios de Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro Centro Universitario, Cerro de las Campanas S/N, Querétaro, Qro., C.P. 76010, México.
2 División de Tiempo y Frecuencia, Centro Nacional de Metrología, CENAM Km. 4.5 carretera a los Cues, El Marques, 76241, Querétaro, México.
Recibido: 17 de junio de 2009.
Aceptado: 23 de abril de 2010.
Abstract
In Photoacoustic experiments and low frequency Photodiode applications, Phase sensitive detection is one of the basic operations performed by a lockin amplifier. Regrettably, it is common to use only basic functions of those devices, in spite of their high cost. The objective of this research is to show the results that were obtained from the development and design of a basic phase shift sensitive device using reconfigurable hardware, which allows a reduction in experimental costs while generating the possibility to apply the developed device in different research fields.
Keywords: Phase sensitive detection; Lockin amplifier; PhotoacousticPhotodiode applications.
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