This contribution focuses on the use of fast-response semi-conductor pressure transducers to measure accurately the mean and fluctuating total pressure or static pressure in a wind tunnel environment. The problem of angular sensitivity is briefly addressed when measuring total pressure. Then, the influence of temperature is described when testing under steady or transient temperature conditions. The influence of the rotational speed is analyzed when measuring with rotating transducers. The transfer function of a sensor-cavity system is also considered. Correction methods are proposed for both the effects of the temperature and the rotational speed. Several applications are presented covering turbulence measurement with a quasi-steady probe, static and total pressure measurements in the absolute frame and the relative frame.
Experiments in Fluids – Springer Journals
Published: Aug 9, 2002
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