| 摘要 |
An ultrasonograph for carrying out examination simply and quickly while achieving high resolution and high- speed processing, an ultrasonic transducer, an examining instrument, and ultrasonographing device the subject matter are disclosed. Piezoelectric layers constituting an ultrasonic transducer are made of barium titanate (BaTiO3) or lead titanate zirconate (PZT) is used and the thickness of each piezoelectric layer is 0.1 to 100 mum. The ultrasonograph comprises a drive unit for driving one of the piezoelectric layers, a sensing unit for sensing electric signals generated by piezoelectric layers receiving echos from the object subjected to ultrasonic wave transmitted by the driven piezoelectric layer, and a processing unit for visualizing the state of the subjected object by processing the sensed electric signal.
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