Ultrasonic wave and ultrasonic examine

Above all,This paper introduced the ultrasonic and ultrasonic characteristic.Because ultrasonic wave has the characteristics that the wavelength is short,frequency is high,easy to reflect and receive ultrasonic wave can be used in the measuring field.The application that the supersound measures is very wide,have already applied successfully to the fields,such as medical treatment,chemical industry,etc..In the end recommend ultrasonic a few typical application and the prospect only finally in this text.