Tilen Košir (Avtor), Janko Slavič (Avtor)

Povzetek

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 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.

Ključne besede

piezoelectric sensors;piezoelectric effect;material extrusion;poling;additive manufacturing;electromagnetic interference;electromagnetic shields;force sensors;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 621.9:539.37
COBISS: 161592067 Povezava se bo odprla v novem oknu
ISSN: 2214-8604
Št. ogledov: 333
Št. prenosov: 23
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: piezoelektrična zaznavala;piezoelektrični učinek;materialna ekstruzija;električna polarizacija;dodajalne tehnologije;elektromagnetna interferenca;elektromagnetni ščiti;silomeri;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-12
Zvezek: ǂVol. ǂ73
Čas izdaje: Jul. 2023
DOI: 10.1016/j.addma.2023.103699
ID: 19818235