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