sonar

(redirected from Echosounder)
Also found in: Thesaurus, Encyclopedia.

so·nar

 (sō′när′)
n.
1. A system using transmitted and reflected underwater sound waves to detect and locate submerged objects or measure the distance to the floor of a body of water.
2. An apparatus, as one in a submarine, using sonar.
3. Echolocation.

[so(und) na(vigation and) r(anging).]

sonar

(ˈsəʊnɑː)
n
(Electronics) a communication and position-finding device used in underwater navigation and target detection using echolocation
[C20: from so(und) na(vigation and) r(anging)]

so•nar

(ˈsoʊ nɑr)

n.
1. a method for detecting and locating objects submerged in water by echolocation.
2. the apparatus used in sonar.
[1940–45; so(und)na(vigation)r(anging)]
click for a larger image
sonar
An electrical impulse is converted into sound waves that are transmitted underwater. The sound waves are reflected off objects in their paths, creating echoes that return to the vessel and are picked up by the sonar equipment.

so·nar

(sō′när′)
1. A method of detecting and locating underwater objects, such as submarines or schools of fish, through the use of reflected sound waves. Because the speed of sound in water is constant (about 4,800 feet, or 1,463 meters, per second), the time it takes for a transmitted signal to reach an object and return can be used to calculate the object's distance.
2. The equipment used in doing this.

sonar

A sonic device used primarily for the detection and location of underwater objects. (This term is derived from the words "sound navigation and ranging.")
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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 returnsonar - 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"
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
navigational instrument - an instrument used for navigating
pinger - a pulse generator used for echo sounding in sonar
pulse generator - a generator of single or multiple voltage pulses; usually adjustable for pulse rate
pigboat, submarine, U-boat, sub - a submersible warship usually armed with torpedoes
Translations
kaikuluotain

sonar

[ˈsəʊnɑːʳ] Nsonar m

sonar

[ˈsəʊnɑːr] nsonar m

sonar

nSonar(gerät) nt, → Echolot nt

sonar

[ˈsəʊnɑːʳ] nsonar m inv
References in periodicals archive ?
With a 75 kHz side scan sonar and a dual-head Kongsberg 2040 multibeam echosounder, its configuration is the same as the systems deployed from the other vessels in the search, the Fugro Discovery and Fugro Equator.
However, the major highlight of the seminar is a live boat demo on the latest EM2040C Compact wideband multibeam echosounder at Bayanat jetty.
The full Integrated Bridge System package will include VisionMaster FT Radars, VisionMaster FT ECDIS, Magnetic Compass System, Echosounder, VoyageMaster G4 Voyage Data Recorder, Gyrocompass, GMDSS Radio, Autopilot and Steering Control System and Speed Logs.
Leidos and team members will provide hydrographic data acquisition services using vertical beam echosounder, multibeam echosounder, side scan sonar, airborne bathymetric Lidar and airborne topographic Lidar in any of the priority areas as defined in the NOAA Hydrographic Survey Priorities.
Zhu Kezhen suffered a defect to its multibeam echosounder and is coming into port to conduct the necessary repairs," Australia's Joint Agency Coordination Centre said in a statement.
Australia's Joint Agency Coordination Centre said in a statement said that Zhu Kezhen suffered a defect to its multibeam echosounder and is coming into port to conduct the necessary repairs, adding that the journey is expected to take a couple of days.
By using boatmounted sonar technology and Echosounder analysis software ORNL researches potential sites for installment and examines the environmental impacts that result from MHK devices.
Near Cap Canaille, in shallow water (depth < 30 m), a bathymetric survey has been done by a CEREGE team with a differential real time kinematics GPS Trimble R8 and a monobeam Tritech PA500 echosounder with a resolution of a few metres across the coast and 10-20 m along the coast.
Performance options include GPS, echosounder, Broadband Radar, StructureScan Sonar Imaging, SonicHub marine audio and SIRIUS weather.
The scope of supply includes radars, electronic chart display and information system, high-speed autopilot, heading and speed sensors, echosounder, DGPS receiver and voyage data recorder.
1:50 MAPPING THE SEAFLOOR USING A MULTIBEAM ECHOSOUNDER IN AN