This letter presents the first 3-D printed Coriolis mass flowmeter, along with its fabrication and experimental characterization. The sensor is conceived to operate in the mode-split conditions with a mismatch between the driven mode and sensed mode resonance frequencies of about 25 Hz around a nominal frequency of 250 Hz. The fabrication process is based on a smart combination of 3D-printing techniques and wet-metallization procedures, with the interesting features of a 200-μm capacitive gap, 500-μm wide 3D-printed microchannel walls, and metallization only on the outer channel surface, which prevents the application of a huge potential on the flowing fluid in operation. The measurements confirm, within a factor 3, the expected performance, with a 60 μV/(g/h) scale factor and a 3 g/hrms resolution on a 1-Hz bandwidth.

The first three-dimensional printed and wet-metallized coriolis mass flowmeter

Gaffuri Pagani L.;Carulli P.;Zega V.;Suriano R.;Bernasconi R.;Frangi A.;Levi M.;Magagnin L.;Langfelder G.
2020

Abstract

This letter presents the first 3-D printed Coriolis mass flowmeter, along with its fabrication and experimental characterization. The sensor is conceived to operate in the mode-split conditions with a mismatch between the driven mode and sensed mode resonance frequencies of about 25 Hz around a nominal frequency of 250 Hz. The fabrication process is based on a smart combination of 3D-printing techniques and wet-metallization procedures, with the interesting features of a 200-μm capacitive gap, 500-μm wide 3D-printed microchannel walls, and metallization only on the outer channel surface, which prevents the application of a huge potential on the flowing fluid in operation. The measurements confirm, within a factor 3, the expected performance, with a 60 μV/(g/h) scale factor and a 3 g/hrms resolution on a 1-Hz bandwidth.
3D-printing
Coriolis flowmeter (CFM)
mass-flow sensing
Mechanical sensors
wet-metallization
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1139180
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