Sonar Technology and Applications

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Questions and Answers

What is the full name of the acronym SONAR?

Sound Navigation And Ranging

What is the function of SONAR?

To determine the depth of the ocean below ships or to locate submarines under the water

Ultrasound is used for cleaning glasses and jewellery.

True (A)

Ultrasound can only be used for medical purposes.

<p>False (B)</p> Signup and view all the answers

Flashcards

Ultrasound Imaging

A method of using sound waves to create images of the inside of the body, particularly of organs or a fetus.

Ultrasound

Sound waves with frequencies between 20 kHz and 100 kHz, inaudible to humans.

Ultrasound Cleaner

A device used to clean delicate objects using high-frequency sound waves.

Decibel (dB)

A measure of sound intensity.

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Sound Pollution

Sound above 120dB can cause discomfort and pain.

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20,000 Hz

The limit of human hearing, typically 20,000Hz.

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Ear Protectors

Protective gear designed to absorb sound frequencies up to 20,000 Hz.

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Ultrasonic Testing

A technique that uses sound waves to detect flaws or defects in materials.

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Ultrasonic Welding

Using ultrasound waves to join or fuse plastic materials.

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Ultrasonic Surgery

Using ultrasound waves to remove tumors or other tissue.

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Sonar (Sound Navigation And Ranging)

A technology used to detect objects underwater by emitting sound waves and analyzing the reflected echoes.

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Echoes

The return of sound waves after being reflected off an object.

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Ultrasound Scan

The use of ultrasound to create images of the internal organs or fetus.

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Reflection and Transmission

When ultrasound waves move through different materials, some waves reflect, and some transmit.

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Reflected Rays

The reflected ultrasound waves are captured and used to create an image.

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Ultrasound Image/Sonogram

A computerized image showing the internal structures of the body, created by ultrasound.

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Ultrasound Penetration

The ability of ultrasound to penetrate different tissues and create images of the internal organs.

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Ultrasound Diagnostics

The use of ultrasound to diagnose or monitor medical conditions.

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Ultrasound Safety

Ultrasound is considered safe for both the mother and the fetus.

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Early Diagnosis

Ultrasound can help detect problems early and improve treatment outcomes.

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Ultrasound Treatment

The use of ultrasound to treat medical conditions or injuries.

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Study Notes

Sonar (Sound Navigation And Ranging)

  • Sonar is used by ships to determine the depth of the ocean below them, the location of schools of fish and the position of submarines under the water
  • An ultrasonic sound wave is sent from the ship
  • The sound wave is reflected from the seabed, school of fish or submarine back to the boat

Other

  • Ultrasound is also used in the industry to detect faults in machinery
  • It is used for cleaning glasses, jewellery and other breakable objects

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