Applications of piezoelectric ultrasonic motor

                                  Applications of piezoelectric ultrasonic motor

Ultrasonic motor (abbreviated as USM) is a new type of electric motor .piezoelectric sphere vibration sensor is developed in recent years. Its birth has opened up a new world for the research and application of micro motors. ultrasonic motor uses a completely new operating mechanism to break the concept of electromagnetic motors.Frequency of piezoelectric tube have so far obtained torque from electromagnetic action. It not only breaks through traditional electromagnetic induction principles in thought, but also has excellent performance characteristics.

Piezoceramic rings datasheet uses the inverse piezoelectric effect and ultrasonic vibration of piezoelectric ceramics to convert the micro-deformation of elastic materials into macroscopic motion of the rotor or slider through resonant amplification and friction coupling. Due to its unique operating mechanism, ultrasonic motor has advantages that traditional electromagnetic motors do not have piezo cylinder transducer:

(1) It is driven by frictional force, so it has self-locking function after power off, and no braking device is required:
(2) Large torque density and large torque of aircraft piezoelectric disc transduceris at low speed,there is no gear reduction mechanism, it is small size, light weight, high control accuracy, and fast response;
(3) There is no noise operation, no electromagnetic interference in the field of discontinuous motion and precision control, ultrasonic motor is much superior to conventional electromagnetic of piezo disc element crystal. In the areas of industrial control systems, automotive electrical appliances, precision instrumentation, office automation equipment, and intelligent robots, USM has broad application prospects.