This project will focus on implementing closed loop control for a voice coil motor and speaker membrane system, in order to manipulate the frequency response of the system.
Background:
The acoustic properties of non-ideal speaker systems can be corrected for using feedback control.
Application:
Minituarised and physically constrained speaker systems.
The exact scope, content and outcomes of the project will be agreed upon with the students considering their background and interests.
Expected outcomes
- Modeling of voice coil actuator and membrane
- System identification of voice coil motor and speaker membrane system
- Implementation of control law on rapid prototyping platform
- Design of a control law for voice coil motor and speaker membrane system
Resources
- MATLAB/Simulink
- Speaker and amplifier
- Hardware-in-the-loop platform (National Instruments PXI-crate or similar)
- Displcament sensort (laser interferemoter or capacitive probe)
References
- https://en.wikipedia.org/wiki/Voice_coil