Abstract
This paper presents a design study of a phononic-fluidic cavity sensor to measure volumetric properties of different liquids. A 3D finite element model shows that the sensor performance drastically depends on the lattice constant of a phononic crystal unit cell. As a result, the numerical model predicts the quality factor up to 200. As proof of concept, we fabricated several sensors using microstereolithography printing, and performed their experimental characterization. We achieved a good match of resonance frequency in the numerical model and experiments. Our experimental results displays a quality factor up to 55, and clearly separated resonance frequencies for different liquids in the cavity, with frequency shifts corresponding to differences in density and speed of sound.
| Original language | English |
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| Title of host publication | Proceedings of 2021 IEEE Sensors |
| Number of pages | 4 |
| Publisher | IEEE |
| Publication date | 2021 |
| ISBN (Print) | 978-1-7281-9502-5 |
| DOIs | |
| Publication status | Published - 2021 |
| Event | 2021 IEEE Sensors - Virtual Conference, Sydney, Australia Duration: 31 Oct 2021 → 4 Nov 2021 https://ieeexplore.ieee.org/xpl/conhome/9639447/proceeding |
Conference
| Conference | 2021 IEEE Sensors |
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| Location | Virtual Conference |
| Country/Territory | Australia |
| City | Sydney |
| Period | 31/10/2021 → 04/11/2021 |
| Internet address |
| Series | Proceedings of IEEE Sensors |
|---|---|
| ISSN | 1930-0395 |
Keywords
- 3D phononic crystals
- 3D printed phononicfluidic cavity sensor
- Finite element method
- Additive manufacturing