Electrode layers are formed on {TAIL ~ planes} of {HEAD ~ a plate shaped piezoelectric element} to provide an ultrasonic transducer material 
Electrode layers are formed on { TAIL ~ planes } of { HEAD ~ a plate shaped piezoelectric element } to provide an ultrasonic transducer material
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH