3D-Printed Calorimetric Flow Sensor

Gerjan Wolterink, Ameya Umrani, Martijn Schouten, Remco G.P. Sanders, Gijs Krijnen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

9 Citations (Scopus)
294 Downloads (Pure)


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 languageEnglish
Title of host publication2020 IEEE Sensors
ISBN (Electronic)978-1-7281-6801-2
ISBN (Print)978-1-7281-6802-9
Publication statusPublished - 9 Dec 2020
EventIEEE Sensors 2020 - Virtual Event, Virtual, Rotterdam, Netherlands
Duration: 25 Oct 202028 Oct 2020


ConferenceIEEE Sensors 2020
CityVirtual, Rotterdam
Internet address


  • n/a OA procedure


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