Speed control of travelling wave ultrasonic motor with a microcontroller

SPEED CONTROL OF TRAVELLING WAVE ULTRASONIC MOTORWITH A MICROCONTROLLER(M.Sc. Thesis)Hasan UZELGAZ UNIVERSITYINSTITUTE OF SCIENCE AND TECHNOLOGYSeptember 2006ABSTRACTThe arm of this thesis is to implement, speed control of travelling waveultrasonic motor (USM) with PIC microcontroller. A digitally controlled drivesystem was developed in order to drive the motor. Driving frequency was usedas a control input in speed control. Speed information was obtained by 500-pprincremental encoder coupled with the motor shaft. Measurement of motor speedwith a microcontroller was provided by cycling square wave signal obtainedfrom encoder coupled with the motor. It has been experimentally shown thatcontrol system gave effective results in speed control of USM.Science Code : 703Key Words : Ultrasonic motor,speed control, microcontrollerPage Number : 73Adviser : Prof. Dr. Güngör BAL