Array type ultrasound probe, manufacturing method and driving method of array type ultrasound probe

摘要

An multi-channel array type ultrasound probe (search unit) disposed at least one-dimensionally, having: a plurality of sheet-shaped piezoelectric elements as transmission reception separation type complex piezoelectric element, wherein a material configuring a transmission piezoelectric element of the complex type piezoelectric element has an elastic coefficient of 10 Gpa to 100 Gpa at 23° C., and a material configuring a reception piezoelectric element of the complex type piezoelectric element has an elastic coefficient of 10 Gpa to 1 Gpa at 23° C.