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

  • T. Okabe
  • T. Miyazaki
  • H. Sakaue


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.


Reference Image AIAA Paper Schematic Description Unsteady Motion Hypersonic Wind Tunnel 
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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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