PMID- 24517814
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20141010
LR  - 20140212
IS  - 1089-7623 (Electronic)
IS  - 0034-6748 (Linking)
VI  - 85
IP  - 1
DP  - 2014 Jan
TI  - Fast contactless vibrating structure characterization using real time field 
      programmable gate array-based digital signal processing: demonstrations with a 
      passive wireless acoustic delay line probe and vision.
PG  - 015109
LID - 10.1063/1.4861190 [doi]
AB  - Vibrating mechanical structure characterization is demonstrated using contactless 
      techniques best suited for mobile and rotating equipments. Fast measurement rates 
      are achieved using Field Programmable Gate Array (FPGA) devices as real-time 
      digital signal processors. Two kinds of algorithms are implemented on FPGA and 
      experimentally validated in the case of the vibrating tuning fork. A first 
      application concerns in-plane displacement detection by vision with sampling 
      rates above 10 kHz, thus reaching frequency ranges above the audio range. A 
      second demonstration concerns pulsed-RADAR cooperative target phase detection and 
      is applied to radiofrequency acoustic transducers used as passive wireless strain 
      gauges. In this case, the 250 ksamples/s refresh rate achieved is only limited by 
      the acoustic sensor design but not by the detection bandwidth. These realizations 
      illustrate the efficiency, interest, and potentialities of FPGA-based real-time 
      digital signal processing for the contactless interrogation of passive embedded 
      probes with high refresh rates.
FAU - Goavec-Merou, G
AU  - Goavec-Merou G
AD  - FEMTO-ST, Time and Frequency Department, UMR CNRS 6174, Univ. Franche Comte, 
      Besancon, France.
FAU - Chretien, N
AU  - Chretien N
AD  - SENSeOR SAS, Besancon, France.
FAU - Friedt, J-M
AU  - Friedt JM
AD  - SENSeOR SAS, Besancon, France.
FAU - Sandoz, P
AU  - Sandoz P
AD  - FEMTO-ST, Applied Mechanics Department, UMR CNRS 6174, Univ. Franche-Comte, 
      Besancon, France.
FAU - Martin, G
AU  - Martin G
AD  - FEMTO-ST, Time and Frequency Department, UMR CNRS 6174, Univ. Franche Comte, 
      Besancon, France.
FAU - Lenczner, M
AU  - Lenczner M
AD  - FEMTO-ST, Time and Frequency Department, UMR CNRS 6174, Univ. Franche Comte, 
      Besancon, France.
FAU - Ballandras, S
AU  - Ballandras S
AD  - Frec'n'sys SASU, Besancon, France.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
EDAT- 2014/02/13 06:00
MHDA- 2014/02/13 06:01
CRDT- 2014/02/13 06:00
PHST- 2014/02/13 06:00 [entrez]
PHST- 2014/02/13 06:00 [pubmed]
PHST- 2014/02/13 06:01 [medline]
AID - 10.1063/1.4861190 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2014 Jan;85(1):015109. doi: 10.1063/1.4861190.