PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
Dielectric elastomers (DE) are capable of high deformations at fast rates and thus, have inspired many loudspeaker designs. In particular, the previously introduced buckling DE-transducers (BDET) seems promising due to its low structural complexity. Due to electromechanical and geometrical nonlinearities, high total harmonic distortion (THD) in the lower end of the spectrum compromises its capability. Here, a method is developed to be run on an audio DSP to reduce the THD of the BDET by preconditioning the signal. Acoustic measurements are conducted and critically discussed. The study brings down one drawback of the BDET and thus increases its competitiveness.
Michael Gareis andJürgen Maas
"Signal conditioning for reducing total harmonic distortion in buckling dielectric elastomer loudspeakers", Proc. SPIE 12042, Electroactive Polymer Actuators and Devices (EAPAD) XXIV, 120420F (20 April 2022); https://doi.org/10.1117/12.2614371
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Michael Gareis, Jürgen Maas, "Signal conditioning for reducing total harmonic distortion in buckling dielectric elastomer loudspeakers," Proc. SPIE 12042, Electroactive Polymer Actuators and Devices (EAPAD) XXIV, 120420F (20 April 2022); https://doi.org/10.1117/12.2614371