acoustic thermometry

noun

Definition of acoustic thermometry

:a technique for measuring the temperature of something (such as a region of ocean water) by measuring how long it takes sound to travel through it
  • Because sound travels faster in warm water than in cold, this method, called acoustic thermometry, could provide a precise method of taking the ocean’s temperature, they reasoned.
  • —R. MonasterskyScience News29 Aug. 1998
Note: The speed of sound through a substance changes in a predictable way as the temperature of the substance changes. By timing a pulse of sound as it passes through a substance, it is possible to determine exactly how warm or cold the substance is.

acoustic thermometer

noun
    • The acoustic thermometer works by transmitting sound waves along a gas-filled tube from a speaker at one end to a microphone at the other. By measuring the amount of time it takes the sound waves to travel along the tube, the temperature can be calculated.
    • Advanced Materials & Processes1 July 2011

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First Known Use of acoustic thermometry

1962


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