What is SONAR. Name the three parameters which can be measured using it. How does the sonar work? What is this technique called and why?
Answers
Answer:
SONAR means sound navigation ranging.It reveals some of the vibrations into the sea so that they can find any of the objects which are sunk.This is called sonar because it help where the object is and from which distance is it.
MEANING
SONAR IS A DEVICE THAT USES ULTRASONIC WAVES TO MEASURE THE DISTANCE AND SPEED OF UNDERWATER OBJECTS
PARAMETERS
THE PARAMETERS ARE TRANSMITTER AND DETECTORS
FUNCTION
THE TRANSMITTERS PRODUCES AND TRANSMITS ULTRASONIC WAVES THESE WAVES TRAVEL THROUGH WATER AND AFTER STRIKING THE OBJECT ON THE SEABED GET REFLECTED BACK AND ARE SENSED BY THE DETECTORS THE DETECTORS CONVERT THE ULTRASONIC WAVES INTO ELECTRICAL SIGNALS WHICH ARE APPROPRIATELY INTERPRETED. THE DISTANCE OF THE OBJECT THAT REFLECTED THE SOUND WAVE CAN BE CALCULATED BY KNOWING THE SPEED SOUND IN WATER AND THE TIME INTERVAL BETWEEN TRANSMISSION AND RECEPTION OF THE ULTRASOUND
TECHNIQUE
THIS TECHNIQUE IS CALLED AS ECHO - RANGING
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