A Simple and Accurate Method of Calibrating X-Probes

[+] Author and Article Information
J. John, T. Schobeiri

Turbomachinery Laboratory, Department of Mechanical Engineering, Texas A&M University, College Station, Texas, 77843-3123

J. Fluids Eng 115(1), 148-152 (Mar 01, 1993) (5 pages) doi:10.1115/1.2910098 History: Received October 30, 1991; Online May 23, 2008


This paper presents an improved method of calibrating hot-film X-probes in incompressible flow. The yaw response of a hot-film X-probe was investigated for different velocities and found to be strongly velocity dependent at low velocities. A simple relation was developed to correct for the variation of yaw response at low velocities. The method using the yaw correction is compared with the single-velocity yaw calibration method. The correction to the yaw response considerably improves accuracy at low velocities.

Copyright © 1993 by The American Society of Mechanical Engineers
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