echo sounder

noun

1. a navigation and position-finding device that determines depth by measuring the time taken for a pulse of high-frequency sound to reach the sea bed or a submerged object and for the echo to return

Derived Forms

• echo sounding, noun

Example Sentences

“This is as exciting as it's going to get,” Warren joked as he dropped the echo sounder overboard.

From Scientific American

IN 1968, when Schindler was 4 months old, his crib was a wooden box used to ship a sonar echo sounder to a research station in remote western Ontario province in Canada.

From Science Magazine

Chile’s national fisheries service authorized Marine Harvest to use a vessel with an echo sounder, making it easier to detect schools of fish.

From Reuters

HMS Echo will have a pretty accurate fathometer - an echo sounder - to determine the depth.

From BBC

The traces on the echo sounder got stronger and stronger, until at 13.06, the Trieste landed on the bottom, kicking up a cloud of white ooze.

From The Guardian