Servo Control of Loudspeaker Cone Motion Using an Optical Linear Displacement Sensor

Geiger W. Servo Control of Loudspeaker Cone Motion Using an Optical Linear Displacement Sensor. J Audio Eng Soc. 2005;53(6):518-524. Available from: https://aes.org/publications/elibrary-page/?id=13425

@article{Geiger2005_13425,
  author = {Geiger, Wolfgang},
  title = {{Servo Control of Loudspeaker Cone Motion Using an Optical Linear Displacement Sensor}},
  journal = {Journal of the Audio Engineering Society},
  volume = {53},
  number = {6},
  pages = {518--524},
  year = {2005},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13425}
}

TY  - JOUR
TI  - Servo Control of Loudspeaker Cone Motion Using an Optical Linear Displacement Sensor
AU  - Geiger, Wolfgang
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 53
IS  - 6
SP  - 518
EP  - 524
PY  - 2005
DA  - 2005/06/06
UR  - https://aes.org/publications/elibrary-page/?id=13425
PB  - Audio Engineering Society
LA  - en
AB  - [Engineering Report] Loudspeakers normally exhibit the highest harmonic distortion in an audio system. Large signals create nonlinear effects in the motor structure as well as displacement errors, which are caused by the non-linear force factor and stiffness. Both effects can be reduced by an optical linear displacement measurement and closed-loop control of cone motion. The absolute value and the phase of the cone displacement are defined by the controller and not by the loudspeaker. This is particularly important for arrays.
ER  -