elliptical vibration meaning in Hindi

• दीर्घवृत्तीय कंपन • दीर्घवृत्‍तीय कंपन

elliptical: अध्‍याहार्य दीर्घ
vibration: स्पंदन कंपकंपी

Ultrasonic motors are a new kind of solid actuators that come into being since 1980 �� s , which use inverse piezoelectric effect of pzt to excite stator �� s elliptical vibration and produce driving power by frictional coupling