IDENTIFICATION OF THE ELECTRICAL IMPEDANCE OF AN IMMOBILIZED TRANSDUCER AND THE MECHANICAL IMPEDANCE OF AN ELECTRODYNAMIC LOUDSPEAKER USING AUTOMATIC FIT OF THE FORCE FACTOR BL

Autoři

  • Denys Volkov National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
  • Vitaliy Didkovskyi

DOI:

https://doi.org/10.36336/akustika20224223

Klíčová slova:

electrodynamic transducer, force factor Bl, brute-force search optimization, electromechanical analogies, complex impedance, apparent resistance, apparent inductance

Abstrakt

This paper describes a method for determining mechanical and electrical impedances of an electrodynamic transducer based on the automatic brute-force search of the force factor Bl. Also, the way of identifying electrical apparent resistance and apparent inductance of the voice coil is shown as an example of deeper loudspeaker analysis that proposed method allows to achieve. The measured signals are voltage on speaker terminals, voice coil current and membrane displacement. Measuring displacement in addition to voltage and current allows to completely separate transducer mechanical subsystem from electrical and apply various known modeling approaches to them separately.

Stahování

Publikováno

2022-03-23

Jak citovat

Volkov, D., & Didkovskyi, V. (2022). IDENTIFICATION OF THE ELECTRICAL IMPEDANCE OF AN IMMOBILIZED TRANSDUCER AND THE MECHANICAL IMPEDANCE OF AN ELECTRODYNAMIC LOUDSPEAKER USING AUTOMATIC FIT OF THE FORCE FACTOR BL. Akustika, 42(42). https://doi.org/10.36336/akustika20224223

Číslo

Vol 42 No 42 (2022): AKUSTIKA

Sekce

TEMPLATE

Licence

Copyright (c) 2022 Denys Volkov

Creative Commons License

Tato práce je licencována pod Mezinárodní licencí Creative Commons Attribution-NonCommercial-NoDerivatives 4.0.

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