压力敏感涂料特性及其校准技术实验研究

doi:10.7527/S1000-6893.2013.0026

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2013, Vol. 34 ›› Issue (2): 227-234.doi: 10.7527/S1000-6893.2013.0026

• Fluid Mechanics and Flight Mechanics • Previous Articles Next Articles

Experimental Research of Pressure Sensitive Paint Performance and Calibration Technique

LI Guoshuai¹, ZHOU Qiang¹, LIU Xiang¹, JIN Biqing², GAO Limin³, MA Husheng¹, XIONG Jian¹

1. China Aerodynamics Research and Development Center, Mianyang 621000, China;
2. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China;
3. School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China

Received:2012-02-23 Revised:2012-05-07 Online:2013-02-25 Published:2012-06-07
Contact: 10.7527/S1000-6893.2013.0026 E-mail:zhouqiang6604@163.com
Supported by:
National Natural Science Foundation of China (11172316)

Abstract

Abstract:

Calibration technique and paint performance research are critical for improving the measurement accuracy and engineering application of pressure sensitive paint (PSP). In this paper, static calibration and photo-degradation experiments are performed based on a PSP static calibration setup and image post-processing software which is programmed independently to study paint performances other than its pressure and temperature sensitivity. The results of this study reveal that the Stern-Volmer curve of PSP exhibits a nonlinear characteristic rather than following the conventional linear pattern, which is approximated with an polynomial function using curve-fitting analysis. Moreover, calibration results of the painted coupon vary in space although the experiment is performed under uniform pressure and temperature,and it tends to decrease calibration accuracy. Finally, PSP demonstrates a photo-degradation characteristic and the degradation curve is approximately linear within a range of time. Evaluation indices of pressure response nonlinearity, calibration spatial non-uniformity and photo-degradation are proposed while their mechanims of production, influences on PSP measurement accuracy and correction methods are also presented.

Key words: pressure sensitive paint, static calibration, paint performance, nonlinear pressure response, spatial non-uniformity, photo-degradation

CLC Number:

V211.7

LI Guoshuai, ZHOU Qiang, LIU Xiang, JIN Biqing, GAO Limin, MA Husheng, XIONG Jian. Experimental Research of Pressure Sensitive Paint Performance and Calibration Technique[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(2): 227-234.

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Experimental Research of Pressure Sensitive Paint Performance and Calibration Technique

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