PMID- 26999138
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160726
LR  - 20181113
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 16
IP  - 3
DP  - 2016 Mar 16
TI  - Dual-Phase Lock-In Amplifier Based on FPGA for Low-Frequencies Experiments.
LID - 10.3390/s16030379 [doi]
LID - 379
AB  - 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 x 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.
FAU - Macias-Bobadilla, Gonzalo
AU  - Macias-Bobadilla G
AD  - Laboratorio de Mecatronica, Universidad Autonoma de Queretaro, Cerro de las 
      Campanas, Col. Las Campanas, S/N, Queretaro 76010, Mexico. gonzalo.macias@uaq.mx.
FAU - Rodriguez-Resendiz, Juvenal
AU  - Rodriguez-Resendiz J
AD  - Laboratorio de Mecatronica, Universidad Autonoma de Queretaro, Cerro de las 
      Campanas, Col. Las Campanas, S/N, Queretaro 76010, Mexico. juvenal@ieee.org.
FAU - Mota-Valtierra, Georgina
AU  - Mota-Valtierra G
AD  - Laboratorio de Mecatronica, Universidad Autonoma de Queretaro, Cerro de las 
      Campanas, Col. Las Campanas, S/N, Queretaro 76010, Mexico. georgina.mota@uaq.mx.
FAU - Soto-Zarazua, Genaro
AU  - Soto-Zarazua G
AD  - Laboratorio de Mecatronica, Universidad Autonoma de Queretaro, Cerro de las 
      Campanas, Col. Las Campanas, S/N, Queretaro 76010, Mexico. genaro.soto@uaq.mx.
FAU - Mendez-Loyola, Maurino
AU  - Mendez-Loyola M
AD  - Laboratorio de Mecatronica, Universidad Autonoma de Queretaro, Cerro de las 
      Campanas, Col. Las Campanas, S/N, Queretaro 76010, Mexico. carmaury@hotmail.com.
FAU - Garduno-Aparicio, Mariano
AU  - Garduno-Aparicio M
AD  - Laboratorio de Mecatronica, Universidad Autonoma de Queretaro, Cerro de las 
      Campanas, Col. Las Campanas, S/N, Queretaro 76010, Mexico. dr.mariano.g@ieee.org.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160316
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
PMC - PMC4813954
OTO - NOTNLM
OT  - Field-Programmable-Gate-Array
OT  - Lock-In-Amplifier
OT  - Phase-Shift-Detection
OT  - frequency-stability
EDAT- 2016/03/22 06:00
MHDA- 2016/03/22 06:01
PMCR- 2016/03/01
CRDT- 2016/03/22 06:00
PHST- 2015/12/12 00:00 [received]
PHST- 2016/03/02 00:00 [revised]
PHST- 2016/03/08 00:00 [accepted]
PHST- 2016/03/22 06:00 [entrez]
PHST- 2016/03/22 06:00 [pubmed]
PHST- 2016/03/22 06:01 [medline]
PHST- 2016/03/01 00:00 [pmc-release]
AID - s16030379 [pii]
AID - sensors-16-00379 [pii]
AID - 10.3390/s16030379 [doi]
PST - epublish
SO  - Sensors (Basel). 2016 Mar 16;16(3):379. doi: 10.3390/s16030379.