Modelling, identification and control of a Langevin transducer

Author

Ghenna, Sofiane ; Giraud, Frederic ; Giraud-Audine, Christophe ; Amberg, Michel ; Lemaire-Semail, Betty

Author_Institution

Lab. d´Electrotech. et d´Electron. de Puissance, IRCICA, Villeneuve d´Ascq, France

fYear

2015

Firstpage

1

Lastpage

6

Abstract

The control of the vibration amplitude, and the resonance frequency tracking for ultrasonic transducer have been established. However, some applications require to control the vibration amplitude and its relative phase at a fixed frequency as the generation of travelling wave. In this paper, the transducer is modelled in rotating frame, and the decoupling according to two-axis allows to obtain a double independent closed loop control to address this issue. It is possible to control the transducer vibration amplitude and its relative phase, in steady state even in transient by acting on the amplitude of the supply voltage. Thanks to vector control method. This approach will be confirmed with experimental and simulation results.

Keywords

closed loop systems; identification; modelling; ultrasonic transducers; vibration control; Langevin transducer; double independent closed loop control; relative phase control; resonance frequency tracking; rotating frame; supply voltage; transducer vibration amplitude control; travelling wave generation; ultrasonic transducer; vector control method; Frequency control; Mathematical model; Resonant frequency; Transducers; Vibrations; Voltage control; Voltage measurement; Control of piezoactuator; Identification of piezo-actuator; Langevin ultrasonic transducer; Vector control; modelling in a rotating reference frame; piezoelectricity;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Control, Measurement, Signals and their Application to Mechatronics (ECMSM), 2015 IEEE International Workshop of

Conference_Location

Liberec

Print_ISBN

978-1-4799-6970-8

Type

conf

DOI

10.1109/ECMSM.2015.7208676

Filename

7208676