echo sounder

Noun echo sounder has 1 sense

• echo sounder(n = noun.artifact) asdic, sonar - a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"
is a kind of measuring device, measuring instrument, measuring system, navigational instrument
has parts: pinger, pulse generator
is a part of pigboat, sub, submarine, u-boat