MICROACTUATIONS OF PIEZOCERAMIC DISKS USED IN PIEZOELECTRIC MOTORS. FIRST RESULTS

Autor/autori: Ilie PRISACARIU, Mircea IGNAT

Rezumat: Lucrarea stiintifica prezinta o serie de rezultate preliminare referitoare la microactuatiile elementelor piezoelectrice de tip discoid utilizate in constructia statoarelor motoarelor piezoelectrice cu unda stationara. Este cunoscut faptul ca principiul de functionare a motoarelor piezoelectrice cu precizie marita are la baza microactuatii ale statorului vibrant ce este in contact intim cu rotorul masinii mentionate. Rezultatele experimentale sunt reprezentate sub forma unor caracteristici pentru diferite tipuri de discuri piezoceramice alimentate de la o sursa de tensiune continua. Este analizata variatia deplasarii functie de deplasare iar in finalul lucrarii sunt redate cateva concluzii cu caracter preliminar.

Cuvinte cheie: microactuatii, motor piezoelectric.

Abstract: This paper presents first results regarding the microactuations of piezoelectric disks used as stators for stationary wave piezoelectric motors. It is known that the function of high precision piezoelectric motors is based on microactuations of the stator which is in direct contact with the rotor. The experimental results are a set of displacement characteristics for different types of piezoceramic disks supllied by a DC voltage source. The dependece of voltage-displacement is analyzed and finally are presented some preliminary conclusions

Keywords: microactuations, piezoelectric motor

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