Page 45 - WAVES
P. 45
Applications of reflection of sound waves
• Ultrasound waves is used to scan and capture the Sonogram
image of a fetus in a mother’s womb and the image of
internal organ in a body. R
• Transmitter P emits ultrasound downwards to the Transmitter, Detector
fetus. P
• Detector R receives the ultrasound (echoes) reflected Abdomen
by the various parts of the fetus.
• The soft tissues of the fetus absorb most of the
incident ultrasound, reflect very little.
• The bony parts will absorb very little, but reflect most Fetus
of the ultrasound.
• The reflected ultrasound will produce an image of
contrasting brightness.
Sonogram
Image
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