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http://dx.doi.org/10.5139/JKSAS.2006.34.5.030

Calibration of a Five-Hole Pressure Probe using a Single Sector Error Interpolation Model  

O, Se-Yun (국방과학연구소)
An, Seung-Gi (국방과학연구소)
Jo, Cheol-Yeong (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.34, no.5, 2006 , pp. 30-38 More about this Journal
Abstract
A new calibration method for five-hole pressure probe is presented. This method provides accuracies better than those based on the traditional regression method. The calibration algorithm uses a single sector interpolation response surface calculated by comparing the regression curve fits with the actual calibration data. A five-hole pressure probe with hemispherical tip was fabricated and calibrated at Reynolds number of $4.11{\times}10^6$/m and flow angle of ${\pm}48$ degrees. Two data prediction models, the least-square regression and a single sector error interpolation, were evaluated. The comparison of these two calibration methods to a five-hole probe is described and discussed. An evaluation of the calibration accuracy is also given.
Keywords
Calibration Test; Error Interpolation; Regression Analysis; Sectoring Scheme; Pressure Port;
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