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SONAR stands for Sound Detection and ranging, and RADAR stands for Radio Aid to Detection and Ranging. as described below (by richard), the principle is simple. Point a signal source in one direction, Listen for the echo to return, and time how long the return signal took, Divide it in two, and with some math, and knowing the speed of the wave, work out how far away the object is. Now if you make the sender/receiver directional. you can move it left and right, and see how wide the object is. If you can rotate it 360 degrees, you get a map of what is arround you. (Gavin)
BY sending out a hi frequency pulse to an aircraft and detecting the timing for the return it can be calculate the speed and direction basically location of an aircraft. Sonar has the same principle applied timing of a response return PING to detect the location.
Radar is a system that uses radio electromagnetic waves to provide a range to a target normal in air or a vacuum. RADAR propagates its radio waves at the speed of light. Sonar uses sound and propagates in pressure wave through water and the speed of sound. And provides a range to a target in a similar way, just at slow speed.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThe basic difference is that sonar (sound navigation and ranging) uses sound (which is mechanical energy) to "look" through water or other media, and radar (radio direction and ranging) uses electromagnetic radiation (radio waves) to "look" through the air or other media.
Wiki User
∙ 14y agoRadar uses electromagnetic waves.
Sonar use sound pressure waves (smaller in frequency than that of radar)and are usually known as acoustic waves.
Radar mostly navigate through air.
Sonar usually work through water.
radar uses e.m waves that travels with speed of light.
where as sonar uses acoustic waves that travels with speed of sound and speed depends on temperature,pressure and salinity of water.
Wiki User
∙ 13y agoRadar operates using radio waves, which travel using light photons and which can travel through media that usually blocks the passage of sound.
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What is the difference between a radar altimeter and a barometric altimeter?
Radar altimeter gets altitude information by bouncing a radio wave off the surface of the Earth and determines the aircrafts altitude by measuring the length of time it takes for the signal to return. Barometric altimeters get altitude information by measuring the barometric air pressure outside the aircraft. Barometric pressure decreases as altitude increases. Radar altimeters will give altitude above ground level while barometric altimeters give altitude above sea level.
Guided wave radar for slop oil tank?
IMO you would be better of installing a non contact radar probe(open wave) in a slop oil tank. The reason being if your process is not hot it will stick to the probe and give you false echos.
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Did a Canadian invent radar?
No is the short answer...... RADAR is an acronym for Radio Detection and Range Christian Hülsmeyer, a German inventor, developed a primitive detector for collision avoidance device for ships in 1904 . It was only effective over a distance of about 1 mile , but could give no indication of range , merely ringing a bell . It used the current technology of a spark gap transmitter , which creates a signal on a wide frequency band and may have been susceptible to interference from the Marconi shipping radios. In between WW1 and WW2 there was rapid progress in radio technology , patents were filed for several devices in the U.S.A. , U.K. and Germany which subsequently became part of RADAR . Thus the parts were available and research was followed in all three countries . In the U.K. Robert Watson Watt had already been purchasing crt(cathode ray tubes)from Germany , for use in displaying his lightning detectors , when his work was extended to detect echoes from aircraft . He helped to develop versions of RADAR for aircraft use against night fighters and submarines . After the war he live for a time in Canada which may have prompted the question....... Scientists at the U.S. Naval Research Laboratory in Washington, D.C., were among the first to use radar to detect aircraft in the early 1930's...but they had only one or two sets at a time when the U.K. was building a network of overlapping systems. When the U.S.A. joined WW2 there was an exchange of knowledge between the U.K. and U.S.A to produce the best mix possible to do the job . As with many high tech inventions , there were many people involved........
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There are some differences between hardness and hardenability. Hardness is the surface property of material to give resistance to the penetration or plastic deformation and it is measured by one of the tests......Rockwell hardness test,Brinell hardness test and Vicker hardness test. On the other hand,hardenability is defined as the ability how the material would be hardened and it is measured by Jominy hardenability test.
How can you see objects that do not give off light?
you can use other methods such as radar or sonar or other methods to detect its volume or mass whichever is most useful
Can you give me a sentence using the word sonar?
Sonar is an acronym.
Why do submarines use sonar instead of radar?
Submarines use both Sonar and Radar for navigation. Though a submarine can use Radar while submerged (at periscope depth, with the Radar mast above the water) it normally isn't used since Radar emissions can be picked up and give a boat's presence and position away. Radar is primarily used for navigation while entering or exiting a port. Submarines are extremely low in the water, and are therefore more difficult for normal merchant ships to see. In this regard, it's essential for a submarine to detect and avoid all surface vessels as early as possible while transiting on the surface.
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A sonar is Fitted into a ship to detect how deep the water is
Can you give me a sentence with the word in it sonar?
A submarine uses sonar, like a bat uses echolocation to see.
Can you give a sentence using radar?
The development of radar helped detect underwater submarines.
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