Error analysis of pressure-sensitive paint measurement

Yu Matsuda, Hiroki Yamaguchi, Yasuhiro Egami, Tomohide Niimi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Pressure-sensitive paint (PSP) is a useful measurement technique to obtain the pressure distribution on a surface, and has been applied to many measurements in wind tunnel testing. The measurement error of PSP has not been discussed in most reports, while the evaluation of the error is very important for quantitative measurements. In this study, we propose the calibration method which enables us to find the defect of PSPs or the failure of the calibration tests easily. Based on the first-and second-order polynomial Stern-Volmer equations, the propagation of error is analyzed. As a result, it is clarified that the experimental values must be fitted by the Stern-Volmer equations with the constraint condition of (p/P refI ref/I) = (1,1) at T = T ref, and the relative error in pressure can be reduced. It is also shown that the error becomes quite large when plp ref ≈-B/2C in the second-order polynomial Stern-Volmer equation. We propose an indicator for the choice of the polynomial order of the Stern-Volmer equation at T/T ref ≈ 1, p/p ref ≈ 1.

Original languageEnglish
Pages (from-to)1189-1200
Number of pages12
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume77
Issue number777
DOIs
Publication statusPublished - 2011 Dec 1
Externally publishedYes

Keywords

  • Error analysis
  • Pressure measurements
  • Pressure-sensitive paint

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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