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Question: Do you measure temperature with sound?
measure, sound, temperature
Asked by 678mmtm34 to Josh on 13 Mar 2018.
answered on 13 Mar 2018:
What a brilliant question! At NPL we’ve been able to create the worlds most accurate thermometer by measuring the speed of sound through a gas.
As the speed of sound changes with the temperature of a gas, we can precisely find the time is takes for sound waves to pass through a gas, and then calculate its speed.
As speed proportional of the temp. of a gas an accurate temperature measurement can be found from know the speed of sound.
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