explain the working and application of sonar with well diagram
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The full form of SONAR is SOund Navigation and Ranging. The method of SONAR is also called echo ranging. It is a device that utilizes ultrasonic waves to estimate and measure the distance, direction and speed of objects underwater.
Principal of SONAR:-
It uses echoes in to determine the sea-depth and locating the presence of objects underwater.
Working of SONAR:
- The transmitter in SONAR produces and transmits powerful ultrasonic waves.
- The ultrasonic waves travel through the water and after striking the target the beam is reflected from the seabed and is received by an under-water detector (mounted on the ship).
- The detector then converts the waves into electrical signals which are properly interpreted.
- The time interval between transmission and reception of the signal is also noted.
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