Voice coil of a speaker - QuickField simulation example
This is an example of the speaker magnetic system simulation performed with QuickField software.
How to find magnetic flux density along speaker voice coil?
Answer Typical applications Geometry
Given
Task
Solution
Results
Magnetic flux density distribution in the air gap along the voice coil height:
Engineering question
Set up an axisymmetric QuickField DC Magnetics problem for a speaker voice coil and evaluate magnetic flux density along the coil from computed field results.
loudspeaker voice coils, dynamic speaker motors, electroacoustic transducers
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Simulation problem
Problem Type
Axisymmetric problem of DC magnetics.
The material of the magnet is ferrite with coercive force Hc = 500 kA/m;
Coil material - copper;
Core material - soft magnetic steel:
Calculate the magnetic flux density profile in the air gap along the voice coil height.
We create an axisymmetrical QuickField DC Magnetic problem with specified geometry and data, and make a plot of flux density versus coordinate B(z) in the air gap.
Flux density color map of the speaker magnetic system:
Video
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