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An electromagnetic sensor with a metamaterial lens for nondestructive evaluation of composite materials
Šturm, Roman (Avtor), Savin, Adriana (Avtor), Steigmann, Rozina (Avtor), Bruma, Alina (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.3390/s150715903 Povezava se odpre v novem oknu

Izvleček
This paper proposes the study and implementation of a sensor with a metamaterial (MM) lens in electromagnetic nondestructive evaluation (eNDE). Thus, the use of a new type of MM, named Conical Swiss Rolls (CSR) has been proposed. These structures can serve as electromagnetic flux concentrators in the radiofrequency range. As a direct application, plates of composite materials with carbon fibers woven as reinforcement and polyphenylene sulphide as matrix with delaminations due to low energy impacts were examined. The evaluation method is based on the appearance of evanescent modes in the space between carbon fibers when the sample is excited with a transversal magnetic along z axis (TMz) polarized electromagnetic field. The MM lens allows the transmission and intensification of evanescent waves. The characteristics of carbon fibers woven structure became visible and delaminations are clearly emphasized. The flaws can be localized with spatial resolution better than [gamma]/2000.

Jezik:Angleški jezik
Ključne besede:electromagnetic sensors, damages, metamaterials lens, nondestructive evaluation
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2015
Št. strani:f. 15903-15920
Številčenje:Vol. 15, iss. 7
UDK:620.179.1:681.586(045)
ISSN pri članku:1424-8220
DOI:10.3390/s150715903 Povezava se odpre v novem oknu
COBISS.SI-ID:14059803 Povezava se odpre v novem oknu
Število ogledov:444
Število prenosov:194
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Naslov:Sensors
Založnik:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 Povezava se odpre v novem oknu

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:elektromagnetni senzorji, neporušitveno vrednotenje, poškodbe materialov

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