Views: 6 Author: Site Editor Publish Time: 2018-05-22 Origin: Site
piezoelectric ceramic transducer used for ultrasonic motor
 materials pzt piezo ring |  7Mhz piezoelectric transducer |  piezo vibration sensor |
As the ultrasonic motor utilizes the inverse piezoelectric effect of the piezoelectric ceramic, 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 and PMnS material. PZT piezoelectric ceramics is a substrate. Through the control of each process,the piezoelectric ceramic ring that satisfies the application requirements of a 7Mhz piezoelectric transducer 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: The traditional solid phase method was used to prepare P-41 and PMnS material. Hifu piezo transducer are used for the structure and operation mechanism of the traveling wave ultrasonic motor, successfully sintered for piezoelectric ceramics it is partitioned silver, polarized to meet the design and use requirements, which is prepared piezo vibration sensor, Assembled on the motor and discussed the impact of the assembly process on motor performance.
P-41 and PMnS material of 2Mhz piezo vibration sensor is analyzed by using XRD, SEM, and other test techniques. The structure of the PZN-PZT piezoelectric ceramic material was studied by examining the dielectric properties of the material with temperature and frequency, and the extent to which the PZT material piezo deviated from the Curieis theorem was investigated to study the temperature and frequency stability of the material. The polarization conditions and polarization modes of the materials pzt piezo ring were analyzed and studied, and the optimal polarization mode of the piezoelectric ceramics for the motor was discussed.
