Comparison of Radiometric and Lifetime based Pressure- Sensitive Paints for Low Speed Pressure Measurements
Comparison of Radiometric and Lifetime based Pressure- Sensitive Paints for Low Speed Pressure Measurements
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用于低速压力测量的基于辐射和寿命的压敏涂料的比较
DOI：
10.2514/6.2006-1041
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
M. Reeder
中科院分区：
文献类型：
--
作者：
J. Crafton;S. Fonov;L. Goss;E. Jones;M. Reeder
在过去的十年中，压敏涂料技术已经作为一种标准仪器部署在几个高速风洞中。事实证明，将这项技术应用于低速工况的努力是困难的。虽然在低速下进行了几次成功的测试，但这些结果通常需要非常仔细的实验程序。为了生产出可靠的低速压敏涂料系统，ISSI已经采用了几种方法来最大限度地减少与压敏涂料测量相关的不确定性。两种最有希望应用于一般应用的方法是辐射双寿命系统和双寿命系统。这些技术已应用于几个低速实验的测量，并在此给出结果。这些结果表明，实际测量分辨率为百分之一psi是可能的；然而，在设计实验时必须小心，以达到这个分辨率。
Over the past ten years the technology of Pressure-Sensitive paint has been deployed in several high speed wind tunnels as a standard instrument. Efforts to extend the use of this technology into the low speed regime have proven difficult. While several successful tests at low speed have been demonstrated, these results generally required very careful experimental procedures. In an effort to produce a robust low speed Pressure-Sensitive paint system, ISSI has instigated several approaches for minimizing the uncertainties associated with Pressure-Sensitive paint measurements. The two most promising approaches for general applications are the Radiometric Binary and Dual Lifetime systems. These techniques have been applied for measurements in several low speed experiments and the results are presented here. These results indicate that practical measurements with a resolution of one one-hundredth of a psi are possible; however care must be taken in the design of the experiment to achieve this resolution.