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The reason submarines can detect other underwater objects is largely due to what?
Wiki User
∙ 14y ago
Submarines use sonar to detect other things in the water. Sonar is an acronym for sound navigation and ranging, but there is a bit more to this. Submarines use what is called active sonar and passive sonar. We need to look at it in a bit of detail to see what's up.
Contemporary submarines have a active sonar system aboard. This system emits "pings" into the water, and the pings are bursts of sound energy. The sound energy propagates through the water, bounces off things around the submarine, and then returns to the submarine to be picked up and listened to. By "pinging" on things, the submarine can develop a profile of sorts of things around it. The bottom is down there, and there's another submarine over there. Something like that. But active sonar means you can be heard a long way away. Farther away than you can effectively "see" other submarines with that active sonar. Other submarines can "hear you coming" because you are pinging, and can do this before you can hear then with the returned pings. That's bad for the submarine using active sonar.
Modern military submarines operate in water that is fairly deep. This means that the submarines don't generally have to worry about hitting anything under the water. As they on patrol, they are listening for other things in the water using their passive sonar array. This array uses the hydrophones to listen to the sounds in the water. These sounds are being made by other ships, other submarines, schools of fish, whales, or whatever else is making "noise" in the water. This is the primary method used by the current military submarines to locate and track other things in the water with them.
Wiki User
∙ 14y ago
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The reason submarines can detect other underwater objects is largely due to which?
Submarines have sonars.
The reason submarines can detect other underwater objects is largely due to?
Sonar. Active and passive
The reason submarines can detect other underwater objects is largely due to which what?
sound wavers are affected by propellers
How are dolphins used in war?
To detect underwater mines and submarines.
Can you give a sentence using radar?
The development of radar helped detect underwater submarines.
How do submarines keep from running into objects?
they use sonar like bats do to detect objects that are in their path
What is the use of sonar?
SOund Navigation And Ranging = SONAR Sound is used underwater to bounce off objects. The reflections back can be measured (by electronics) to find our where they are and how far away. Used by submarines, to navigate round obstacles underwater and detect other vessels.
How can submarines detect other underwater objects?
Underwater objects are usually tracked by means of the sounds given off by an object. For a submarine, sound is generated largely by its propellers as they churn through the water. However, the engines and some other parts also generate noise. These noises are detected by a submarine's sonar (sound detection and ranging equipment).Objects can also be located by reflected sound waves, known as "active sonar". A "ping" or sound wave is generated into the water. Any differences in the returning sound indicates the location of an object or structure underwater. This technique can also be used to map the ocean floor.
What does SONAR mean and what is this method use for?
SOund Navigation And Ranging. Its used mainly to detect underwater objects.
What is the system that uses the reflection of underwater sound waves to detect objects?
sonar(sound navigation and ranging)
When is it echo considered as useful?
Echo is caused due to reflection of sound and it has major applications in SONAR, which is used by submarines or planes to detect other objects
Why is water a good medium for communication between dolphins?
Sound waves travel very well in water. Warships, including submarines, use passive sonar to listen for enemy ships and submarines. Passive sonar employes underwater hydrophones to listen for sounds. They can detect sounds of ships and submarines miles away. Marine mamals such as whales and dolphins detect sound in much the same way.
