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SONARSonar is a acronym which stands for So-SOund

N-Navigation

A-And R-Ranging

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Sonar is a device that usesultrasonic waves to measure thedistance, direction and speed ofunderwater objects sonarconsists of a transmitter

and a detector and isinstalled in a

boat or a ship.

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he transmitter produces and transmitsultrasonic waves. hese waves travelthrough water and after stri!ing theobject on seabed, get re"ected bac! and

are sensed by the detector. he detectorconverts waves into electrical signalwhich are appropriately interpreted.

#OR$%N&O'SONAR

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he distance of the object thatre"ected the sound wave can becalculated by !nowing the speed ofsound in water and time intervalbetween transmission and receptionof ultra sound

(ow to calculate distance

of object

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)et time interval be t and speedof sound through sea water be v

total distance traveled by wave is *dthen,

*+

(AN$ O/