An Acoustic Hybrid Actuator Based on Inertial Proof Mass Devices
F. Braghin, S. Cinquemani, F. Resta
Politecnico di Milano, Milano, Italy
The paper deals with the design of a device for sound reproduction to be fixed to a supporting surface. The device is made up of two different types of acoustic actuators based on different technologies. This allows to reproduce sound in the range of frequencies from 20Hz to 20kHz. The generation of sound at high frequencies is demanded to a magnetostrictive actuator, while a more traditional magnetodynamics actuator is used to generate sound at low frequencies. The coupling between these two actuators leads to a device having small overall dimensions and high performance.
ACTUATOR 2014 Manuscript A3.5
Publication date: 08/04/2015
Manuscript A3.5 published in Conference Proceedings ACTUATOR 2014
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