echo depth-sounder
1depth sounder — noun An echo sounder • • • Main Entry: ↑depth …
2Echo sounding — pulses directed from the surface or from a submarine vertically down to measure the distance to the bottom by means of sound waves. HistoryAfter the disaster of the Titanic in 1912, the German physicist Alexander Behm conducted some research to… …
3Sounder (disambiguation) — Sounder may refer to:* Sounder , a book by William H. Armstrong * Sounder (film) , a film based on the novel *Sounder, a group of wild boar, or of domestic pigs foraging in woodland (in other circumstances a group of domestic pigs is a herd).… …
4echo sounder — ► NOUN ▪ a device for determining the depth of the seabed or detecting objects in water by measuring the time taken for echoes to return to the listener …
5echo sounding — n. the determining of depth of water by means of a device (echo sounder) that measures the time required for a sound wave to be reflected from the bottom: a similar process (echo ranging) is used to measure the distance to an underwater object *… …
6echo sounding — n. the determining of depth of water by means of a device (echo sounder) that measures the time required for a sound wave to be reflected from the bottom: a similar process (echo ranging) is used to measure the distance to an underwater object …
7echo sounder — noun 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 …
8depth finder — ▪ measurement device also called echo sounder device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body… …
9echo — n. & v. n. (pl. oes) 1 a the repetition of a sound by the reflection of sound waves. b the secondary sound produced. 2 a reflected radio or radar beam. 3 a close imitation or repetition of something already done. 4 a person who slavishly repeats… …
10Echo — n. & v. n. (pl. oes) 1 a the repetition of a sound by the reflection of sound waves. b the secondary sound produced. 2 a reflected radio or radar beam. 3 a close imitation or repetition of something already done. 4 a person who slavishly repeats… …
