A Temperature-Cancellation Method for Motion-Capturing PSP System and Its Application to a Hypersonic Wind Tunnel

  • T. Okabe
  • T. Miyazaki
  • H. Sakaue
Conference paper

Introduction

Pressure-sensitive paint (PSP) technique has been applied to various aerospace fields. A combination of a fast responding PSP (unsteady PSP) and a fast frame-rate camera enables the PSP technique to capture unsteady flow fields [1]. Miyamoto et. al. [2] introduced amotion-capturing system that used a two-color unsteady PSP and a color fast frame-rate camera to capture unsteady motions of PSP coated models. Based on these progresses, the PSP technique can be applied to steady- to unsteadyflow fields as well as unsteady motions of a PSP coated model. Even though these progresses have been made, the technique has a major challenge: the temperature dependency due to a non-radiative process of a PSP. Several methods have been proposed to reduce or to cancel the temperature dependency. However, a method to reduce or to cancel the dependency for the motion-capturing system was not proposed. We introduce a temperature-cancellation method for the motion-capturing PSP system. The resultant system was applied for a pressure measurement in The Hypersonic and High Enthalpy Wind Tunnel at The University of Tokyo, Kashiwa Campus.

Keywords

Reference Image AIAA Paper Schematic Description Unsteady Motion Hypersonic Wind Tunnel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • T. Okabe
    • 1
  • T. Miyazaki
    • 1
  • H. Sakaue
    • 2
  1. 1.The University of Electro-CommunicationsChofuJapan
  2. 2.Japan Aerospace Exploration Agency (JAXA)ChofuJapan

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