Research of rotary piezotable driven by two harmonic signals

This paper presents description of new design, its operation and primary research data of rotary piezotable driven by two harmonic signals. Synthesis of driving ring shape piezoelement and additional components ensures uniform motion of rotor. Supply of two harmonic signals, which are featured by distinct frequency and amplitude, to appropriately sectioned electrodes of piezoelectric ring-shaped transducer initiates specific rotational type oscillations of the rotor. Experimental research provides a possibility to observe two oscillation-based operational regimes and one regime integrating both ordinary rotational motion and rotational vibrations effect.Original Abstract: Straipsnyje pateikiama nauja sukamojo pjezostaliuko, varomo dviem harmoniniais signalais, konstrukcija, veikimas ir pirminiai tyrimu duomenys. Varanciojo ziedo formos pjezoelemento ir papildomu komponentu saveika uztikrina tolygu rotoriaus judesi. Dvieju harmoniniu signalu, pasizyminciu skirtingais dazniais bei ampitudemis, tiekimas i atitinkamai suskirstytus pjezoziedo elektrodus, sukuria specialius sukamojo tipo virpesius isejimo grandyje. Eksperimentiniai tyrimai suteikia galimybe stebeti du virpesiais pagristus darbo rezimus ir viena rezima, integruojanti iprasta sukamaji judesi bei sukamuju virpesiu efekta.