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Amplitude Control of an Ultrasonic Vibration for a Tactile Stimulator

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Ben Messaoud, Wael | Giraud, Frédéric | Lemaire-Semail, Betty | Amberg, Michel | Bueno, Marie-Ange

Edité par HAL CCSD ; Institute of Electrical and Electronics Engineers

International audience. This paper describes the control in a (d-q) frame of the vibration amplitude of a tactile stimulator based on ultrasonic vibrations. The objective is to combine two control strategies in order to maintain a constant level of vibration amplitude and to excite at the resonance frequency of the system. A new modelling approach is presented to identify the transfer function between inputs and outputs. Then, thanks to an experimental setup, the validation of the new model is performed. Finally, the result of the closed loop control over wide range of disturbing factors is presented.

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