The prediction of nonlinear resistance and distortion for a miniature loudspeaker with vented cavities

Autor:	Bilong Liu, Fengyan An, Chengpu Sun, Sibing Wu
Rok vydání:	2020
Předmět:	Spectrum analyzer Total harmonic distortion Materials science Acoustics and Ultrasonics Diaphragm (acoustics) Acoustics Stiffness equipment and supplies Nonlinear system Arts and Humanities (miscellaneous) Distortion medicine Loudspeaker medicine.symptom Body orifice
Zdroj:	The Journal of the Acoustical Society of America. 146(6)
ISSN:	1520-8524
Popis:	The nonlinear resistance and its influence on the total harmonic distortion of a miniature loudspeaker with vented cavities are investigated. A method for the prediction of nonlinear resistance is described. In the model, the nonlinear resistance caused by the magnetic gap and the orifices in the back cover of the miniature loudspeaker is taken into account. The nonlinear acoustic resistance is estimated through the electric analogy method, and then it is transformed into the equivalent nonlinear resistance of the vibrating diaphragm. The estimated nonlinear resistance is verified through the Klippel Analyzer measurement. The influence of the nonlinear resistance, mechanical stiffness and force factor on the total harmonic distortion is calculated and compared with the measurements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84aaed4b8d94c08eac48c449fc6e9699 https://pubmed.ncbi.nlm.nih.gov/31893684 Zobrazit plný text záznamu