PIEZOELECTRIC TRANSDUCER MANUFACTURE PROCESS Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: process involves installation and fixation of piezoid in blind hole in bottom part of first old, hole bottom being covered with thin layer of viscous liquid, filling of first mold with composition for damper, curing extraction of damper and piezoid bonded together from first mold, thermal treatment of composition for protector at temperature not lower than that of boiling water, installation of second mold on face part of damper, filling of second mold with composition for protector, and curing. Prior to filling first mold with damper composition, the latter is subjected to thermal treatment at temperature not lower than that of boiling water; damper and protector compositions are cured at temperature T_o satisfying condition T_p ≥ T_o ≥ T_c, where T_p is permissible working temperature of piezoid; T_c is vitrification temperature of composite materials for damper and protector. EFFECT: facilitated procedure for manufacturing transducers working at low temperatures.