Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments

Photothermal techniques allow the detection of characteristics of material without invading it. Researchers have developed hardware for some specific Phase and Amplitude detection (Lock-In Function) applications, eliminating space and unnecessary electronic functions, among others. This work shows t...

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Main Authors: Gonzalo Macias-Bobadilla, Juvenal Rodríguez-Reséndiz, Georgina Mota-Valtierra, Genaro Soto-Zarazúa, Maurino Méndez-Loyola, Mariano Garduño-Aparicio
Format: Article
Language:English
Published: MDPI AG 2016-03-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/16/3/379
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author Gonzalo Macias-Bobadilla
Juvenal Rodríguez-Reséndiz
Georgina Mota-Valtierra
Genaro Soto-Zarazúa
Maurino Méndez-Loyola
Mariano Garduño-Aparicio
author_facet Gonzalo Macias-Bobadilla
Juvenal Rodríguez-Reséndiz
Georgina Mota-Valtierra
Genaro Soto-Zarazúa
Maurino Méndez-Loyola
Mariano Garduño-Aparicio
author_sort Gonzalo Macias-Bobadilla
collection DOAJ
description Photothermal techniques allow the detection of characteristics of material without invading it. Researchers have developed hardware for some specific Phase and Amplitude detection (Lock-In Function) applications, eliminating space and unnecessary electronic functions, among others. This work shows the development of a Digital Lock-In Amplifier based on a Field Programmable Gate Array (FPGA) for low-frequency applications. This system allows selecting and generating the appropriated frequency depending on the kind of experiment or material studied. The results show good frequency stability in the order of 1.0 × 10−9 Hz, which is considered good linearity and repeatability response for the most common Laboratory Amplitude and Phase Shift detection devices, with a low error and standard deviation.
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spelling doaj.art-ae22e79c94ff4b0fb6abb73520a534b92022-12-22T04:23:35ZengMDPI AGSensors1424-82202016-03-0116337910.3390/s16030379s16030379Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies ExperimentsGonzalo Macias-Bobadilla0Juvenal Rodríguez-Reséndiz1Georgina Mota-Valtierra2Genaro Soto-Zarazúa3Maurino Méndez-Loyola4Mariano Garduño-Aparicio5Laboratorio de Mecatrónica, Universidad Autónoma de Querétaro, Cerro de las Campanas, Col. Las Campanas, S/N, Querétaro 76010, MexicoLaboratorio de Mecatrónica, Universidad Autónoma de Querétaro, Cerro de las Campanas, Col. Las Campanas, S/N, Querétaro 76010, MexicoLaboratorio de Mecatrónica, Universidad Autónoma de Querétaro, Cerro de las Campanas, Col. Las Campanas, S/N, Querétaro 76010, MexicoLaboratorio de Mecatrónica, Universidad Autónoma de Querétaro, Cerro de las Campanas, Col. Las Campanas, S/N, Querétaro 76010, MexicoLaboratorio de Mecatrónica, Universidad Autónoma de Querétaro, Cerro de las Campanas, Col. Las Campanas, S/N, Querétaro 76010, MexicoLaboratorio de Mecatrónica, Universidad Autónoma de Querétaro, Cerro de las Campanas, Col. Las Campanas, S/N, Querétaro 76010, MexicoPhotothermal techniques allow the detection of characteristics of material without invading it. Researchers have developed hardware for some specific Phase and Amplitude detection (Lock-In Function) applications, eliminating space and unnecessary electronic functions, among others. This work shows the development of a Digital Lock-In Amplifier based on a Field Programmable Gate Array (FPGA) for low-frequency applications. This system allows selecting and generating the appropriated frequency depending on the kind of experiment or material studied. The results show good frequency stability in the order of 1.0 × 10−9 Hz, which is considered good linearity and repeatability response for the most common Laboratory Amplitude and Phase Shift detection devices, with a low error and standard deviation.http://www.mdpi.com/1424-8220/16/3/379Field-Programmable-Gate-ArrayPhase-Shift-DetectionLock-In-Amplifierfrequency-stability
spellingShingle Gonzalo Macias-Bobadilla
Juvenal Rodríguez-Reséndiz
Georgina Mota-Valtierra
Genaro Soto-Zarazúa
Maurino Méndez-Loyola
Mariano Garduño-Aparicio
Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments
Sensors
Field-Programmable-Gate-Array
Phase-Shift-Detection
Lock-In-Amplifier
frequency-stability
title Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments
title_full Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments
title_fullStr Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments
title_full_unstemmed Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments
title_short Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments
title_sort dual phase lock in amplifier based on fpga for low frequencies experiments
topic Field-Programmable-Gate-Array
Phase-Shift-Detection
Lock-In-Amplifier
frequency-stability
url http://www.mdpi.com/1424-8220/16/3/379
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