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Development and applications of a cold wire thermometer for unsteady temperature field measurements


Autore: G. Barigozzi, G. Cossali

Collana: AA - 2001 Quartu S. Elena - MIS - MAC VII Metodi di Sperimentazione nelle Macchine

The paper reports the application of cold wire thermometer to high frequency fluctuation temperature measurement. The acquired signal compensation was performed by numerical post-processing, and the experimental procedure for evaluating the probe transfer function is described in some details. The main characteristics of the probe, like angular response and velocity dependence of the calibration constants, were experimentally assessed, together with an evaluation of the overall experimental accuracy. First results about the application of the technique to measurements of the flow from a self-ventilating brake disk are reported.

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