Sound speed = ultrasound speed?


by bznm
Tags: sound, speed, ultrasound
bznm
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#1
Feb21-12, 12:08 PM
P: 62
Hi, I'm doing a lab report and I need to know if ultrasound speed in the air is the same of sound speed in the air.
Thank you
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boneh3ad
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#2
Feb21-12, 12:52 PM
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Ultrasound is just sound with a very high frequency such that we can't hear it. Therefore, yes, it is identical to any other form of sound, including its speed in air.
berkeman
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#3
Feb21-12, 01:20 PM
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Quote Quote by bznm View Post
Hi, I'm doing a lab report and I need to know if ultrasound speed in the air is the same of sound speed in the air.
Thank you
Quote Quote by boneh3ad View Post
Ultrasound is just sound with a very high frequency such that we can't hear it. Therefore, yes, it is identical to any other form of sound, including its speed in air.
Lookes like boneh3ad is right: http://hyperphysics.phy-astr.gsu.edu...nd/souspe.html

.

Dumbo1914
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#4
Feb21-12, 01:27 PM
P: 1

Sound speed = ultrasound speed?


Speed of sound is very nearly independent of frequency, but not quite, (see A B Wood, A Textbook of Sound (Bell, London, 1946))

For your purposes I doubt it would make a difference. However for low pressures it might.
bznm
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#5
Feb21-12, 05:48 PM
P: 62
Thank you very much ;)


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