POLARITY CONTROL DEVICE piezoceramic electroacoustic transducer in multi-hydroacoustic ANTENNA

摘要

The invention relates to the field of underwater acoustics measurement technology. In the device, a piezoelectric electroacoustic transducer (EMAT) multielement sonar antenna, located in the operating environment, connected to the generator and the other two EMATs positioned by radiating EMAT equidistant connected with the switch and the adder introduced into the duct receiving electric signals from the terminals EMAT . The magnitude of the signal obtained by adding the signals from EMAT can determine whether the studied EMAT same polarity or opposite. A useful model to determine the polarity of the EAP in the field.