Engineering Acoustics/Transducers - Loudspeaker

From Wikibooks, open books for an open world
< Engineering Acoustics
Jump to: navigation, search

EA1.jpg

Authors · Print · License

Edit this template

Part 1: Lumped Acoustical Systems1.11.21.31.41.51.61.71.81.91.101.11

Part 2: One-Dimensional Wave Motion2.12.22.3

Part 3: Applications3.13.23.33.43.53.63.73.83.93.103.113.123.133.143.153.163.173.183.193.203.213.223.233.24

Acoustic Transducer[edit]

The purpose of the acoustic transduer is to convert electrical energy into acoustic energy. Many variations of acoustic transducers exists, although the most common is the moving coil-permanent magnent tranducer. The classic loudspeaker is of the moving coil-permanent magnet type.


The classic electrodynamic loudspeaker driver can be divided into three key components:

1) The Magnet Motor Drive System

2) The Loudspeaker Cone System

3) The Loudspeaker Suspension

This illustration shows a cut-away of the moving coil-permanent magnet loudspeaker.


Woofer Picture here

Magnet Motor Drive System[edit]

Loudspeaker Cone System[edit]

Loudspeaker Suspension[edit]

An equivalent circuit can be used to model all three loudspeaker components as a lumped system. This circuit provides a model of the loudspeaker and its separte sub-componenets and can be used to provide insight into what parameters alter the loudspeaker's performance.