Quelennec, A.
, Gorman, J.
and Reyes-Hernandez, D.
(2020),
Frequency tunable label-free surface acoustic wave-based flow sensor, Proceedings of Micro Total Analysis Systems 2020, Virtual Online, MD, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=930523
(Accessed April 26, 2024)
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Frequency tunable label-free surface acoustic wave-based flow sensor
Published
Author(s)
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Abstract
We present a label-free SAW-based flow sensor with enhanced precision and repeatability. This sensor improves the signal-to-noise ratio by one order of magnitude (dB scale) at an optimized frequency, and lowers the measurable flow rate to 5 μL/min (from 250 μL/min) when compared to our single frequency approach in time-domain. The device was designed so that the distance between the transducers is tunable to further increase its sensitivity to 40 mdB/(μL/min). This sensor provides an easy-to-integrating sensing element that does not affect the principal functionality of the microfluidic network and offers local flow information.Proceedings Title
Proceedings of Micro Total Analysis Systems 2020
Conference Dates
October 4-9, 2020
Conference Location
Virtual Online, MD, US
Conference Title
The 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS 2020)
Pub Type
Conferences
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Keywords
Flow Metrology, Electroacoustics, SAW Sensor
Citation
Created October 7, 2020, Updated August 29, 2022