超声成像换能器的应用现状及其展望

ransducer is a part of ultrasound transmission and echo receiver, which is the most important acoustics part in medical ultrasonic imaging system. The development of ultrasonic imaging transducer make ultrasound image clearer, viewing more direct. This paper mainly introduce the application status of ultrasound transducers used to ultrasonographic for different part of human body, the technique development and its prospect of piezocomposite transducer, piezoelectric single crystal transducer, wide-band transducer, 3D imaging transducer and capacitive micromachined ultrasonic transducer(cMUT).