Echolot a German device used timed (Pings) developed in Interwar period. also applied to Blimps ( another Naval application!) as the Sonicaltimeter- note the blend word like modern computer-age run-ons. The Sonic Altimeter was used to determine ground clearance when crossing mountain ranges, for example, they were made by Echolot a German firm still in existence. Echolot was used on German Zeppelins in the altimeter mode.
Sonar
A special type of radar called sonar is used to detect objects underwater by emitting sound waves and detecting their reflections. Sonar is commonly used in applications such as navigation, communication with submarines, and mapping the ocean floor.
Sonar (SOund NAvigation and Ranging) is used to find objects. Sonar is used to find ships, submarines, mines, and other objects in the Navy. Sonar is used in Medicine to find unusual tumors, organs, and cells. Sonar is used in Geology to find minerals, oil, rock formationsn, and water .
They use sonar to find the enemy. Passively, they listen for the sounds of the other ships, which will give them a bearing to the target. Active sonar will ping the enemy and provide a range as well.
The sonar signals are audio wave signals created by the transmitter that can pass through water. When Radio signals are created in air it is called radar. Usually sonar are used in underwater applications, and navy defense.
Yes sonar can be used at periscope depth. Surface ships also have sonar arrays on them. They are usually used to detect submarines.
sonar,is used to map mid-ocean ridges:]
Sonar can be used to locate large shoals of fish.
Naval operations: Submarine and anti-submarine usage. in the thirties a Blimp altimeter called a Sonicaltimeter was tested on Navy Blimps by Admiral Rosenthal, noted (Blimp admiral). The device was made in Germany by Echolot- still in business. Echolot is a blend word of Echo Location or Echo-Pilot. not a Batty idea but uses in a sense ultra-sound not radar waves.
Sonar was used to detect and hunt submarines in WW2
Sonar is used to detect other vessels or ships/submarines through a tube-like device> Andrea
sonar is a device used underwater for locating submerged objects and for submarine communication by means of sound waves.