Abstract |
The paper presents a disc-armature linear two-phase servomotor, controlled by an electronic phase variator. Construction principle and means of speed control are described. In this paper only the phase control of servomotor is studied. In this purpose the structure of the phase variator and its performances are shown. The servomotor driven by the phase variator is experimentally tested. The waveforms of the main signals inside the variator, as well as output currents are given. Also, dynamic regimes of servomotor are experimented, taking the output voltage of a linear two-phase tachogenerator as measure of rotational speed. |