Sonic transducer array

摘要: The present invention relates to a transducer array having resolution suitable for imaging objects disposed in liquid medium and illuminated with sonic energy of short wavelength. consists plurality piezoelectric transducers sensing the waves at their extremities designed produce corresponding electrical voltages image formation. While individual are fabricated from common monolithic block, geometry is used which reduces coupling between transducers. transducers, vibrate longitudinal mode antinodes either extremity nodal regions center, supported nodes by thin web. web then means attaching frame apparatus. Central support minimizes stresses on vibration, crosstalk, improves array. Monolithic assembly permits large numbers like be efficiently formed an economical batch process.