Rafael Ecker, Bernhard Jakoby,
"Microfluidic Flowmeter Using a Single Hot Wire"
: Proc. of Eurosensors 2023, Vol. 97(1), Nummer 64, 2024
Original Titel:
Microfluidic Flowmeter Using a Single Hot Wire
Sprache des Titels:
Englisch
Original Buchtitel:
Proc. of Eurosensors 2023
Original Kurzfassung:
The objective of this work is the design and fabrication of a microfluidic thermal flow sensor using polymethylmethacrylate (PMMA) as substrate. This enables a simple fabrication process of the channel structure and the sensor itself using a laser engraver/cutter machine and a solvent based bonding process. A thin platinum wire, a so-called Wollaston wire, is integrated directly into the fluidic chip and acts as the only sensor element. The combination of this sensor and the customized measurement electronics enables a measurement range starting at flow velocities from 4 mm/s up to 400 mm/s (volume flow rate range starting from 10 ?l/min up to 1ml/min).
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