Pregled bibliografske jedinice broj: 198287
Superconducting voice coil - a route to increase efficiency of an electrodynamic loudspeaker
Superconducting voice coil - a route to increase efficiency of an electrodynamic loudspeaker // proc od 2nd Congres of AAAA and 1st Croatian Acoustic Associaation
Opatija, 2005. str. 143-147 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 198287 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Superconducting voice coil - a route to increase efficiency of an electrodynamic loudspeaker
Autori
Đurek, Ivan ; Đurek, Danijel ; Somek, Branko
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proc od 2nd Congres of AAAA and 1st Croatian Acoustic Associaation
/ - Opatija, 2005, 143-147
Skup
2nd Congres of AAAA and 1st Congres of Croatian Acoustic Association
Mjesto i datum
Opatija, Hrvatska, 23.06.2005. - 24.06.2005
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
loudspeaker; superconductors; efficiency
Sažetak
Loudspeaker is the most critical part of an electroacoustical chain, and construction and design are going in the direction of lowering distortion and increasing efficiency. Efficiency of a common loudspeaker is very low, below 1%. One way to increase efficiency of an electrodynamic loudspeaker is to use superconductors as the material for the voice coil. Standard characteristics of the electrodynamic loudspeaker, like vibration amplitude, output power and efficiency have been analyzed, when copper wire in the voice coil is considered to be replaced by superconducting single turn ribbon. It is evident an apparent increase of the efficiency in a broad frequency range. Basic conclusions have been experimentally tested on the copper voice coil with reduced electric resistance after cooling down to 130 K.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
