Manufacturing of single-process 3D-printed piezoelectric sensors with electromagnetic protection using thermoplastic material extrusion

Košir, Tilen (avtor), Slavič, Janko (avtor)

Material extrusion with a thermoplastic polymer enables the simultaneous fabrication and poling of piezoelectric sensors; however successful implementation of electromagnetic interference (EMI) protection has yet to be achieved. This research addresses key challenges such as encapsulating the sensor in a limited space without affecting the poling process, the high resistance of the conductive filaments causing low-pass charge filtering, and the need for electrical contact with EMI-protected measurement devices. The presented design principles enable the fabrication of a fully 3D-printed piezoelectric sensor in a single process that includes a piezoelectric sensing element, wire, and a connector interface, all EMI-shielded. Strategies such as inter-trace extrusion filling and electrode ironing are introduced to avoid electrode short circuits and electric poling issues. In addition, the 3D-printed interface allows direct connection to commercially available connectors and measurement devices. As a force sensor, the fully 3D-printed piezoelectric sensor with full EMI shielding has an excellent signal-to-noise ratio of 27 dB and reduces noise for more than two orders of magnitude if compared to the partially shielded sensor. This research is an important step forward in fabricating and embedding piezoelectric sensors in a single process that offers a wide range of applications in fields such as structural health monitoring, robotics, and biomedical engineering, where a high degree of customization is required.

• Jezik: Angleški jezik
• Ključne besede: piezoelectric sensors, piezoelectric effect, material extrusion, poling, additive manufacturing, electromagnetic interference, electromagnetic shields, force sensors, single process
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 12 str.
• Številčenje: Vol. 73, art. 103699
• PID: 20.500.12556/RUL-148359
• UDK: 621.9:539.37
• ISSN pri članku: 2214-8604
• DOI: 10.1016/j.addma.2023.103699
• COBISS.SI-ID: 161592067
• Datum objave v RUL: 18.08.2023

Gradivo je del revije

• Naslov: Additive manufacturing
• Založnik: Elsevier
• ISSN: 2214-8604
• COBISS.SI-ID: 520374041

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: piezoelektrična zaznavala, piezoelektrični učinek, materialna ekstruzija, električna polarizacija, dodajalne tehnologije, elektromagnetna interferenca, elektromagnetni ščiti, silomeri

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0263
• Naslov: Mehanika v tehniki

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J2-3045
• Naslov: V enem procesu 3D natisnjeni dinamični senzorji