Pregled bibliografske jedinice broj: 258325
Non linear stiffness of the loudspeaker measured in an evacuated space
Non linear stiffness of the loudspeaker measured in an evacuated space // AES Papers, 121st Convention
San Francisco (CA), 2006. (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 258325 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Non linear stiffness of the loudspeaker measured in an evacuated space
Autori
Đurek, Ivan ; Đurek, Danijel ; Petošić, Antonio ; Demoli, Nazif
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
AES Papers, 121st Convention
/ - San Francisco (CA), 2006
Skup
121st AES Convention
Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 05.10.2006. - 08.10.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
non-linear stiffness; vacuum; loudspeaker
Sažetak
The impedance of the mechanical vibration system of the loudspeaker was measured in vacuo in order to remove the contributions of the radiation impedance of air. The Hooke constant k was evaluated by the use of calibrated weights and from the membrane displacements due to the force exerted by DC current in the voice coil. The resonant frequency was found to decrease with increasing non-linear Hooke constant, which is attributed to the effective mass of the vibration system, dependent upon elongation. The effective mass was evaluated from the fitting of measured and calculated loudspeaker impedance curve.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
