National Physical Laboratory

Practical Acoustic Thermometry

Further Information

Published: 30 September 2010

Authors: Michael de Podesta, Gavin Sutton, Robin Underwood, Radka Veltcheva

Related: Engineering Measurement

(PDF 0.6 MB)

Using variations in the speed of sound to measure temperature.

Sound travels at different speeds through different temperatures. This is the basic principle used in acoustic thermometry, which could be applied in industrial situations where high-temperature monitoring of large volumes is required, e.g. in nuclear power production. The research demonstrates that high-resolution measurements are possible at high temperatures.

Last Updated: 7 Aug 2015
Created: 9 Mar 2011


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