[Sans titre]
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| hal.structure.identifier | School of Physics and Astronomy [St Andrews] | |
| dc.contributor.author | ROBERT DE SAINT VINCENT, Matthieu | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | CASSAGNÈRE, Sébastien | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | PLANTARD, Joël | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | DELVILLE, Jean-Pierre | |
| dc.date.created | 2012-01-30 | |
| dc.date.issued | 2012-09 | |
| dc.identifier.issn | 1613-4982 | |
| dc.description.abstractEn | We developed an optical, microfabrication-free approach for performing real-time measurements of individual droplet characteristics (frequency of production, velocity, and length) flowing in a transparent microfluidic channel. Our approach consists in an interpretation of the differential signal produced by a pair of photodiodes connected head-to-tail due to the variations of illumination at the passage of a droplet. We checked the relevance of this zero-background method by comparing results to video measurements, and observed a very good agreement at rates up to the kHz range. Moreover, since the measured values are stored in a simple text file, flow characterization over very long times (several hours) becomes accessible. We applied this facility to perform three examples of longterm studies: stationary regimes, transient regimes, and the effect of an external forcing. Several unexpected features, like long-period fluctuations, can thus be evidenced. | |
| dc.language.iso | en | |
| dc.publisher | Springer Verlag | |
| dc.subject.en | Digital microfluidics | |
| dc.subject.en | Flow characterization | |
| dc.subject.en | Measurement in fluid dynamics | |
| dc.subject.en | Real-time characterization | |
| dc.subject.en | Transient regimes | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1007/s10404-012-0955-1 | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn] | |
| bordeaux.journal | Microfluidics and Nanofluidics | |
| bordeaux.page | 261-271 | |
| bordeaux.volume | 13 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00713184 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00713184v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Microfluidics%20and%20Nanofluidics&rft.date=2012-09&rft.volume=13&rft.issue=2&rft.spage=261-271&rft.epage=261-271&rft.eissn=1613-4982&rft.issn=1613-4982&rft.au=ROBERT%20DE%20SAINT%20VINCENT,%20Matthieu&CASSAGN%C3%88RE,%20S%C3%A9bastien&PLANTARD,%20Jo%C3%ABl&DELVILLE,%20Jean-Pierre&rft.genre=article |
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