SONAR (SOund Navigation And Ranging)

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Presentation transcript:

SONAR (SOund Navigation And Ranging) Youjin Lee Nicole Park Joanne Lee

SONAR A device utilizing sound to determine the range and direction to an underwater object. Used on ships to measure depth of water Detect large concentrations of fish or large objects underwater

How does it work? Sends a pulse Time of the echo’s return is measured Can calculate the distance travelled by knowing the speed of sound in water Bats and whales use the same method to sense their surroundings

Benefits/Drawbacks Benefits Drawbacks Detect/prevent possible dangers underwater Used on ships, naval vessels, submarines fish finding searching for shipwrecks probing harbors where visibility is poor oceanography studies searching for underwater geological faults mapping the ocean floor. Military usages No major drawbacks, except when your military enemy is using it against you