Method for preforming ultrasonic motor stator ceramic wafer cracking

• Main Authors: LIU QINGRUI, YANG SHAORUI, AN MENGYU, YAN CAIHONG, AN GUOQING
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2018
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a method for preforming ultrasonic motor stator ceramic wafer cracking. The method comprises the following steps that an ultrasonic motor good in running condition is selected, and a stator is taken down; a scratch is preformed; an experimental platform provided with the motor is put into a constant temperature box; the motor is started, load is increased, the driving frequency of the motor is gradually reduced, driving voltage is raised, running is performed for 2 h-3 h, and the temperature of the constant temperature box is lowered to 25 DEG C; the cracking situationof a stator ceramic wafer is detected; the stator ceramic wafer in the cracking situation is reinstalled in the motor, and put into the constant temperature box, the motor is started, the load is increased, the driving frequency of the motor is gradually reduced, the driving voltage is raised, motor running is kept until the motor stops running, other conditions remain unchanged, and the load isgradually reduced to zero;