An ultrasonic transducer device includes a substrate, a vibrating film, a piezoelectric element, an input section and a detection section. The substrate has a plurality of openings. The vibrating film provided in each of the openings to cover a corresponding one of the openings. The piezoelectric element is provided in each of the openings on the vibrating film. The input section is configured and arranged to input a drive signal to a part of piezoelectric elements among the piezoelectric elements. The detection section is configured and arranged to detect vibration of the piezoelectric elements, in which the drive signal is not inputted, among the piezoelectric elements while the drive signal is inputted to the part of the piezoelectric elements among the piezoelectric elements.
