ANTENNA MODULE OF PRECISION DOPPLER LOG FOR DEEP UNDERWATER VEHICLE

摘要

FIELD: physics.SUBSTANCE: in the antenna module, the front matching layer is made half-wave from a metal with high sound speed, the active piezoceramic disc is immersed into the working medium by said front matching metal layer through a half-wave layer of liquid whose acoustic characteristics are close to acoustic characteristics of the working medium.EFFECT: high accuracy of pulsed Doppler log and reduced size of the antenna module.1 dwg