DEEP_OCEAN_VELOCIMETER

Published:2009/7/17 3:07:00 Author:Jessie | From:SeekIC

Sonic pulse produced by transducer s is sent along fixedlength water path at any depth and picked up by receiving transducer R． Received signal is then amplified and fed back to blocking oscillator to synchronize it at repetition rate determined by delay time of pulse in water. Pulses then go to cable-driving circuit, and through cable to surface vessel for counting.-L. Dulberger, Deep-Ocean Velocimeter Aids Sonar Systems Design, Electronics, 34:22, p 41-43.



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