ULTRASONIC PROBE AND PRODUCTION METHOD THEREOF

摘要

This invention relates to an ultrasonic probe consisting of a plurality of array oscillators of piezoelectric members. The object of the invention is to easily apply weighing of polarization in the direction of thickness of the piezoelectric members in order to converge the beam radiated from the ultrasonic wave element. To accomplish this object, the present invention is characterized in that the polarization (V1, V2, V3) of the piezoelectric members (33) of the array oscillators are decreased step-wise from the center of the array oscillators towards both ends in the direction (b) perpendicular to the array direction of the array oscillators.