Piezo ceramics is vibration generator of an ultrasonic motor

      Piezo ceramics is vibration generator of an ultrasonic motor

PZT material piezoceramic rings

piezoelectric ring transducer

4Mhz piezoelectric ceramics

Studied P-41 and PMnS material. PZT material piezoceramic rings have the admittance characteristics, load characteristics, start-up and shut-off characteristics, and temperature characteristics of the motor .when it is a vibration generator of an ultrasonic motor, and the performances of motors of different sizes are studied.

Combined with P-41 and PMnS material. The performance of PZN-PZT piezoceramic rings vibration sensor is connected with performance of ultrasonic motor, to explore the impact of material properties on the performance of ultrasonic motor.

As the ultrasonic motor utilizes the inverse piezoelectric effect of the piezoelectric ring transducer, the elastic body (stator) is excited to generate micro-vibration to realize the conversion of electrical energy and mechanical energy. Therefore, the performance of the ultrasonic motor directly affects the operation of the motor. This article has been successfully developed by the research group P-41 material. PZT piezoelectric ceramics is substrated. Through the control of each process, piezoceramic ring knock sensor satisfies the application requirements of a traveling-wave ultrasonic motor is obtained. Through the polarization process and application performance research, the correlation between the performance of piezoelectric ceramic and the motor performance is discussed. 

The main research contents are as follows: Preparation of P-41 material has traditional solid phase method. It is PZN-PZT piezoelectric ceramics, for the structure and operation mechanism of the traveling wave ultrasonic motor, successfully sintered piezoelectric ceramics were cut, partitioned silver, polarized to meet the design and use requirements, they prepared 4Mhz piezoelectric ceramics used for ultrasonic knife,Assembled on the motor and discussed the impact of the assembly process on motor performance.