Abstract
This work shows the development and char- acterization of a fully 3D-printed thermal mass flow sensor, based on regular and carbon-doped thermoplastic polyurethane (TPU). Using multi material fused deposition modelling (FDM) 3D-printing, the sensor is based on one heater element and two resistive thermal sensors (sensor - heater - sensor configuration). The transduction is based on the temperature dependent resistance of carbon doped polymers. Characterisation of the conductive TPU shows a positive thermal coefficient of resistance (TCR) ranging between 0.002 ◦C−1 to 0.024 ◦C−1 , whereas the sensor shows a responsivity of 20 mV ml−1 min−1 in the pseudo linear range for flows below 3 mL min−1 while using a power of 1W and a temperature up 58◦C.
Original language | English |
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Title of host publication | 2020 IEEE Sensors |
Publisher | IEEE |
ISBN (Electronic) | 978-1-7281-6801-2 |
ISBN (Print) | 978-1-7281-6802-9 |
DOIs | |
Publication status | Published - 9 Dec 2020 |
Event | IEEE Sensors 2020 - Virtual Event, Virtual, Rotterdam, Netherlands Duration: 25 Oct 2020 → 28 Oct 2020 https://2020.ieee-sensorsconference.org/ |
Conference
Conference | IEEE Sensors 2020 |
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Country/Territory | Netherlands |
City | Virtual, Rotterdam |
Period | 25/10/20 → 28/10/20 |
Internet address |
Keywords
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