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Transient Response of Wire Resistance Thermometers

Published online by Cambridge University Press:  04 July 2016

Alan Quarmby
Alan Quarmby*
Affiliation:
Faculty of Technology, University of Manchester
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Extract

In using resistance wire thermometers for measuring transient gas temperatures, such as internal combustion engine exhausts, errors occur due to the thermal inertia of the wire and conduction along it and the supports.

Benson and Brundrett analysed the situation by solving the heat transfer equation for a particular case where the gas temperature was assumed to vary sinusoidally with time. An estimate of the maximum error for particular sizes of wire could be obtained. Conduction in the supports was neglected.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 68 , Issue 646 , October 1964 , pp. 696 - 698
Copyright
Copyright © Royal Aeronautical Society 1964

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References

1.Benson, R. S. and Brundrett, G. W.Development of a Resistance Wire Thermometer for Measuring Transient Temperatures in Exhaust Systems of Internal Combustion Engines. Temperature — Its Measurement and Control in Science and Industry, Vol. 3, Part 2, 1962.Google Scholar
2.Sagan, H.Boundary and Eigenvalue Problems in Mathe matical Physics. Wiley, 1961.Google Scholar
3.Betchov, R.Non-linear Theory of a Hot Wire Anemometer. NACA TM 1346, July 1952.Google Scholar