System zur Repolarisierung von Wandlern in einer Ultraschallsonde

摘要

A system for rapolarizing transducers in an ultrasonic probe (1) includes a plurality of transducers (2) and electrodes (5,7). The system includes a voltage generator (54) configured to generate a predetermined voltage high enough to repolarize the transducers, a switch (53) configured to control a supply of the predetermined voltage to the electrodes, a connector (51) configured to connect the electrodes to the switch through a plurality of lands (21,23), the lands being provided sufficiently insulated from each other to prevent a dielectric breakdown between the lands while repolarizing the transducers, an interface (56) configured to provide an instruction, and a controller (55) configured to control the voltage generator. An ultrasound imaging apparatus that uses the repolarization system and an ultrasonic probe are also provided.