Non Linear Stiffness of the Loudspeaker Measured in the Evacuated Space

Demoli N, Djurek D, Djurek I, Petosic A. Non Linear Stiffness of the Loudspeaker Measured in the Evacuated Space. In: AES Convention 121. Audio Engineering Society; 2006. Paper 6940. Available from: https://aes.org/publications/elibrary-page/?id=13774

@inproceedings{Demoli2006_13774,
  author = {Demoli, Nazif and Djurek, Danijel and Djurek, Ivan and Petosic, Antonio},
  title = {{Non Linear Stiffness of the Loudspeaker Measured in the Evacuated Space}},
  booktitle = {AES Convention 121},
  note = {Paper 6940},
  year = {2006},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13774}
}

TY  - CPAPER
TI  - Non Linear Stiffness of the Loudspeaker Measured in the Evacuated Space
AU  - Demoli, Nazif
AU  - Djurek, Danijel
AU  - Djurek, Ivan
AU  - Petosic, Antonio
T2  - AES Convention 121
M1  - Paper 6940
PY  - 2006
DA  - 2006/10/06
UR  - https://aes.org/publications/elibrary-page/?id=13774
PB  - Audio Engineering Society
LA  - en
AB  - 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.
ER  -