With an ultrasonic transducer 30 constructed as described above, the drive circuit impresses the pulse voltage {HEAD ~ whose phase} has been controlled to {TAIL ~ a prescribed level} upon the printed circuit terminals 50 
With an ultrasonic transducer 30 constructed as described above , the drive circuit impresses the pulse voltage { HEAD ~ whose phase } has been controlled to { TAIL ~ a prescribed level } upon the printed circuit terminals 50
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH