Polydimethylsiloxane (PDMS)-based microfluidic channel with integrated commercial pressure sensors

Mackenzie Dover, C.M., Li, Yifan, Korniliou, S., Sefiane, K., Terry, J.G. and Walton, A.J. (2017) Polydimethylsiloxane (PDMS)-based microfluidic channel with integrated commercial pressure sensors. In: 2017 IEEE SENSORS. IEEE, Piscataway, pp. 1-3. ISBN 9781509010127

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Abstract

The precise characterisation of boiling in microchannels is essential for the optimisation of applications requiring two phase cooling. In this paper polydimethylsiloxane (PDMS) is employed to make microchannels for characterising microboiling. In particular the material properties of PDMS facilitate rapid prototyping and its optical transparency provides the capability to directly view any fluid flow. The production of microchannels is complicated by the need to integrate custom made sensors. This paper presents a PDMS microfluidic device with integrated commercial pressure sensors, which have been used to perform a detailed characterisation of microboiling phenomena. The proposed approach of integrating commercial pressure sensors into the channel also has potential applications in a range of other microsystems.

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