大深度触底指示器Pinger换能器及其声反射系统
THE PINGER TRANSDUCER of THE BOTTOM-FINDING INDICATOR IN DEEP SEA AND ITS ACOUSTIC REFLECTION SYSTEM
Abstract
The pinger transducer, a core part of the bottom Finding indicator, and its acoustic reFlection system were introduced here.By utilizing acoustic reFlection system, a high beam pattern of pinger transducer was Formed in vertical direction.The directivity index of pinger transducer has 20 dB increase.By experimenting in the PaciFic Ocean of the depth of more than 5 000 meter, the inFormation of the bottom Finding indication was obtained