38documents trouvés
Banc de caractérisation pour capteurs de gaz
D.LAGRANGE, P.FADEL, B.FRANC, C.TROPIS
TEAM, M2D, 2I
Rapport LAAS N°09097, Mars 2009, 40p.
Diffusable
116808Conception et réalisation d'une plateforme d'instrumentation thermique pour les applications micro-fluidiques
B.MARTY, T.CAMPS, A.MARTY, J.TASSELLI, D.LAGRANGE
N2IS, 2I
Manifestation avec acte : Journées Nationales du GDR MNS, Montpellier (France), 3-5 Décembre 2008, 2p. , N° 08750
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116254Electronic scheme for multiplexeddynamic behavior excitation and detection of piezoelectric silicon-based micromembranes
C.AYELA, T.ALAVA, D.LAGRANGE, D.REMIENS, C.SOYER, T.ONDARCUHU, A.GREVE, L.NICU
NANO, 2I, IEMN Villeneuve, CEMES/CNRS, MIC
Revue Scientifique : IEEE Sensors Journal, Vol.8, N°3, pp.210-217, Mars 2008 , N° 07444
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Abstract
A new concept for a precise compensation of the static capacitance of piezoelectric silicon-based micromembranes is proposed. Combining analog and digital (FPGA) hardware elements with specific software treatment, this system enables the parallel excitation and detection of the resonant frequencies (and the quality factors) of matrices of piezoelectric micromembranes integrated on the same chip. The frequency measurement stability is less than 1ppm (1-2 Hz) with a switching capability of 4 micromembranes/sec and a measurement bandwidth of 1.5 MHz. The real-time multiplexed tracking of the resonant frequency and quality factor on several micromembranes is performed in different liquid media, showing the high capability of measurement on dramatically attenuated signals. Prior to these measurements, calibration in air is done making use of silica microbeads successive depositions onto piezoelectric membranes surface. The mass sensitivity in air is thus estimated at , in excellent agreement with the theoretical corresponding value.
Mots-Clés / Keywords
Piezoelectric; MEMS; Multiplexed detection; Mass sensitivity;
Combining resonant piezoelectric micromembranes with molecularly imprinted polymers
C.AYELA, F.VANDEVELDE, D.LAGRANGE, K.HAUPT, L.NICU
NANO, Université Compiègne, 2I
Revue Scientifique : Angewandte Chemie International Edition, Vol.46, N°48, pp.9271-9274, Décembre 2007 , N° 07428
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Mots-Clés / Keywords
Biosensor; Membranes; Molecular recognition ; Piezoelectric; polymerization;
Détecteur de gaz. Conception et réalisation d'un module portatif
F.BLANC, D.LAGRANGE, D.MEDALE, P.MARCOUL, C.GANIBAL, P.MENINI
2I, M2D
Rapport LAAS N°07069, Février 2007, 38p.
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109260ChemFETmètre digital V2
D.LAGRANGE, I.HUMENYUK, P.MARCOUL, D.MEDALE, P.TEMPLE BOYER
2I, M2D
Rapport LAAS N°06689, Octobre 2006, 28p.
Diffusion restreinte
108159MEMS based one shot electro-thermal micro-switches for system reconfiguration
P.PENNARUN, C.ROSSI, D.ESTEVE, D.LAGRANGE
2I, MIS
Manifestation avec acte : CANEUS 2006, Toulouse (France), 27 Août - 1er Septembre 2006, 6p. , N° 06535
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107583Study on pH-ISFET temperature effect using implemented MOS transistor
I.HUMENYUK, SPALOMAR, D.LAGRANGE, S.ASSIE-SOULEILLE, B.FRANC, P.MARCOUL, D.MEDALE, A.MARTINEZ, P.TEMPLE BOYER
2I, M2D
Manifestation avec acte : International Conference on Mixed Design of Integrated Circuits and Systems (MIXDES'2006), Gdynia (Pologne), 22-24 Juin 2006, pp.528-532 , N° 06212
Diffusable
107308Specific nearby electronic scheme for multiplexed excitation and detection of piezoelectric silicon-based micromembranes resonant frequencies using FPGA technology
D.LAGRANGE, C.AYELA, E.CATTAN, C.SOYER, L.NICU
2I, NANO, IEMN Villeneuve
Rapport LAAS N°06414, Mai 2006, 2p.
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106985Maximum power point tracking of PV systems using extremum seeking control
R.LEYVA-GRASA, C.ALONSO, I.QUEINNEC, A.CID-PASTOR, D.LAGRANGE, L.MARTINEZ SALAMERO
DEEEA, CIP, MAC, 2I, ISGE
Revue Scientifique : IEEE Transactions on Aerospace and Electronic Systems, Vol.42, N°1, pp.249-258, Janvier 2006 , N° 05245
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