Details

Autor(en) / Beteiligte

• Lucchetta, D. E.
• Vita, F.
• Francescangeli, D.
• Francescangeli, O.
• Simoni, F.

Titel

Optical measurement of flow rate in a microfluidic channel

Ist Teil von

• Microfluidics and nanofluidics, 2016, Vol.20 (1), p.1, Article 9

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A way to measure flow rate inside a microchannel using a contactless optical technique is reported. The optofluidic device consists of a Bragg grating written on a soft wall, namely a Mylar stripe glued on the top of a microfluidic channel. Diffraction of a white-light probe beam is used to detect the small displacements of the grating caused by the liquid flowing inside the microchannel. A simple model of the hydraulic circuit gives theoretical expressions for the response time of the diffracted signal allowing to fit the experimental data and determine the applied flow rates.