A sprayable fast-responding pressure-sensitive paint (fast-PSP) has been developed to measure time-resolved small pressure fluctuation on model surfaces. To realize PSP with fast response, high robustness, and high luminescence intensity, we have developed a novel ruthenium complex-based fast-PSP. The binder layers of the proposed fast-PSP were prepared by mixing room-temperature-vulcanizing silicone (silicone) and titanium dioxide (TiO₂) particles with different sizes and their effects on the properties including the time response, pressure sensitivity, and luminescence intensity were investigated. The effects of the hydrophilic and hydrophobic surface treatments of TiO₂ particle on the structure and mechanical robustness of the binder layer were also studied. The developed fast-PSP was applied to the flow field measurements behind a square cylinder and was evaluated. We have succeeded in obtaining time-series data of pressure fluctuation with high accuracy even at a mean velocity of 20 m s⁻¹.

已经开发出一种可喷涂的快速响应压敏涂料 (fast-PSP) 来测量模型表面上时间分辨的小压力波动。为了实现具有快速响应、高稳健性和高发光强度的 PSP，我们开发了一种新型的基于钌配合物的快速 PSP。通过混合不同尺寸的室温硫化有机硅（silicone）和二氧化钛（TiO ₂）颗粒及其对时间响应、压力敏感性和发光强度等性能的影响，制备了所提出的 fast-PSP 的粘合剂层。被调查。TiO ₂亲水和疏水表面处理的影响还研究了颗粒对粘合剂层结构和机械强度的影响。将开发的快速 PSP 应用于方形圆柱体后面的流场测量并进行评估。即使在20 ms ^{-1 的}平均速度下，我们也成功地获得了高精度的压力波动的时间序列数据。