Flow control system applying ultrasonic motor

The utility model discloses a flow control system using an ultrasonic motor. The flow control system comprises a valve, the rotary ultrasonic motor and a pipeline installed at an inlet and an outlet of the valve. Flow control of the valve is adjusted through rotation of the output shaft of the ultrasonic motor. The ultrasonic motor has the advantages of being high in response speed, high in precision, resistant to electromagnetic interference and the like, the structure of a traditional flow controller is simplified, and the adjusting precision and the response speed of the traditional flow controller are improved. Due to the principle advantages of the ultrasonic motor compared with an electromagnetic motor, the novel flow controller can be completely suitable for various strong magnetic environments and ultralow temperature environments, the operation stability of the novel flow controller is improved, and the service life of the novel flow controller is prolonged. 本实用新型公开了一种应用超声电机的流量控制系统，包括阀门、旋转型超声电机、安装在阀门