Use of a Constant Temperature Hot-Wire Anemometer to Compensate for the Thermal Lag

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Turbulence Measurements in Liquids: Proceedings of Symposium on Turbulence Measurements in Liquids September 1969, Page: 66-68

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Freymuth, Peter
University of Missouri--Rolla
Chemical Engineering
conference paper description
A constant temperature hot-wire anemometer can be used to compensate for the thermal lag of a wire or film resistance thermometer within the useful frequency range of the anemometer. This method may be used as an alternative to the standard method in which a differentiation circuit as employed in constant current anemometers is used for frequency compensation. The new method is useful if a constant temperature anemometer is at hand. The time constant of the resistance thermometer need not be determined.